av9ash/GitBugs huggingface dataset:
Bug: Broken fonts in Nightly since late November 2020
Status: RESOLVED
Priority: --
Resolution: DUPLICATE
Created: 2021-01-03 19:41:53+00:00
Resolved: 2021-01-03 19:48:35+00:00

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:86.0) Gecko/20100101 Firefox/86.0

Steps to reproduce:

Sorry, it's hard to describe in words. I hope that the screenshots are helpful.

Since late November 2020 I started something seeing very broken fonts on websites sometimes.

I first noticed it with Arabic fonts (especially Nastaliq: Urdu, Punjabi, etc.). They were very broken in Nightly around November 24, 2020. But after that it got fixed.

However, a few days after that I started seeing pretty broken fonts in English, Russian, and Hebrew. This happened on various websites: Wikipedia (English, Hebrew, Nepali), academia.edu, Washington Post, New York Times, LA Times, meduza.io (Russian), mako.co.il (Hebrew), and others.

I use Nightly 2021-01-02 on macOS Catalina.


Actual results:

The font appears broken. This tends to happen more in places where the font size is larger, for examples titles and headings. Most often, the lower part of letters shows dots, lines, or parts of other letters.

This happens intermittently. Refreshing sometimes fixes the problem, but sometimes doesn't.


Expected results:

The font shouldn't be broken.
Bug: SpeechRecognition undefined in Nightly
Status: RESOLVED
Priority: --
Resolution: INVALID
Created: 2021-01-03 22:31:26+00:00
Resolved: 2021-01-04 13:57:13+00:00

Based on the outcome of Bug 1248897, am I to understand that SpeechRecognition should now be exposed on Nightly if certain prefs are set?

I have `devtools.chrome.enabled = true` and `media.webspeech.recognition.enable = true`, Nightly Version 86.0a1 (2021-01-03); Macos 10.13.6. 

I have tested on https://mdn.github.io/web-speech-api/speech-color-changer/index.html., but page does not load properly due to breakage on `webkitSpeechRecognition is not defined` error (meaning that `window.SpeechRecognition` must have resolved to false in the startup script.)

Running a simple script shows that `window.SpeechRecognition` is undefined.
Bug: Clicking on the “Search shortcuts in the address bar” message from the What’s New doorhanger doesn’t focus the tab opened by it
Status: VERIFIED
Priority: --
Resolution: FIXED
Created: 2021-01-04 09:49:41+00:00
Resolved: 2021-01-08 14:04:17+00:00

**[Affected versions]:**
- Firefox Nightly 86.0a1 (Build ID: 20210103213448)
- Firefox Release 85.0b4 (Build ID: 20201220193140)
- Firefox Release 84.0.1 (Build ID: 20201221152838)

**[Affected Platforms]:**
- Linux Mint 20
- Windows 10
- macOS 10.15

**[Prerequisites]:**
- Have a new Firefox profile open.

**[Steps to reproduce]:**
1. Click the hamburger button (“Open menu” button).
2. Click the “What’s New” option.
3. Click on the “Search shortcuts in the address bar” message.

**[Expected result]:**
-  All three messages open a new tab and focus it.

**[Actual result]:**
- The “Search shortcuts in the address bar” message opens a new tab but doesn’t focus it.

**[Notes]:**
- Clicking on the other two messages focuses the new tab opened by them, so the first one not having the same behavior leads to inconsistency.
- Attached is a recording of the issue.
Bug: scrolling screenshot
Status: RESOLVED
Priority: --
Resolution: DUPLICATE
Created: 2021-01-04 11:22:19+00:00
Resolved: 2021-01-04 15:42:46+00:00

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:85.0) Gecko/20100101 Firefox/85.0

Steps to reproduce:

1. Open any web page
2. Use the built-in screenshot tool to start scrolling page screenshots 
3.  Save Screenshot 


Actual results:

 Some screenshots beyond the browser window are not displayed 


Expected results:

 Some screenshots beyond the browser window should be displayed normally
Bug: Default search engine setting is not synced
Status: RESOLVED
Priority: --
Resolution: DUPLICATE
Created: 2021-01-04 11:58:41+00:00
Resolved: 2021-01-05 01:44:23+00:00

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:84.0) Gecko/20100101 Firefox/84.0

Steps to reproduce:

I installed a new Firefox with syncing on a different laptop.


Actual results:

All of the expected configuration settings got synced except the "Default search engine".


Expected results:

I expected the "Default search engine" setting would be also synced.
Bug: Deleting history month-wise causes huge RAM usage
Status: RESOLVED
Priority: --
Resolution: DUPLICATE
Created: 2021-01-04 14:23:02+00:00
Resolved: 2021-01-04 20:09:08+00:00

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:84.0) Gecko/20100101 Firefox/84.0

Steps to reproduce:

Opened the library to delete the browsing history. Selected all history older than 6 months, right click, delete.

System: Gentoo (precompiled binary), x64, X11
Firefox: 84.0.1


Actual results:

UI froze, firefox used all available RAM of the system (~3GB idle, 16GB installed), additional swap of 12GB got used. High CPU load. I closed the window after about 5min after starting the deletion process when I noticed the system load, RAM + CPU went back to normal. When I reopened firefox, the history was deleted / not visible anymore. 

Same happened even with the monthly history, less RAM usage though.


Expected results:

Deletion of the history without such a heavy resource impact on the whole system.
Bug: "Mute Tab" sometimes starts playing the tab's video, with sound
Status: RESOLVED
Priority: --
Resolution: FIXED
Created: 2021-01-04 14:29:34+00:00
Resolved: 2021-10-26 21:46:51+00:00

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:84.0) Gecko/20100101 Firefox/84.0

Steps to reproduce:

1. Have a page with a link to a youtube video (could be e.g. a search result page on youtube).
2. Open this link in a new tab (e.g. ctrl+click). Note: as per my settings, this is the default I think, the new tab is _not_ switched to.
3. Quickly, before that page loads, right-click on that new tab's label. A menu opens, its second entry being "Mute Tab".
4. Wait until the page loads. This is seen by a "play" icon appearing on the tab. The menu entry remains "Mute Tab" (although if you closed and reopened this menu, the second entry would be a "Play Tab" now, but don't do it for this bug to occur).
5. Click on this "Mute Tab" menu entry.


Actual results:

The video starts playing, unmuted, as if I clicked on the "Play Tab" entry.


Expected results:

The "Mute Tab" menu entry should mute the tab, and not start playing the video within.

Note: Another approach that you might consider would be to immediately replace the "Mute Tab" entry with "Play Tab" whenever the page is loaded to that extent. I'd strongly be against this approach, since it might happen just before I'm about to click on "Mute Tab", too late for me to realize that it just switched to some other action, effectively resulting in the same buggy experience.

Another note: I'm not sure I agree with the approach of "Mute Tab" and "Play Tab" being mutually exclusive (and apparently the technical solution being that they grab the same menu "slot" and hence one's action is invoked instead of the other's). Currently, if a video page is fully loaded, I cannot mute that tab without switching to that tab first. I don't understand the rationale behind it, I think it would be better for the "Mute Tab" and "Play Tab" entries to coexist in that case.
Bug: The "Sponsored stories" checkbox is wrongly displayed in the Customization panel in Regions where it shouldn't
Status: VERIFIED
Priority: P1
Resolution: FIXED
Created: 2021-01-04 15:05:22+00:00
Resolved: 2021-01-13 10:29:09+00:00

**[Affected versions]:**
- Firefox Nightly 86.0a1, BuildID 20210104090857
- Firefox Beta 85.0b4, BuildID 20201220193140

**[Affected Platforms]:**
- Windows 10
- macOS 10.15
- Linux MX 4.19

**[Prerequisites]:**
- Have an en-* Firefox build.
- Have a new Firefox profile with the following prefs set:
  - `browser.newtabpage.activity-stream.newNewtabExperience.enabled` pref set to `true`.
  - `browser.search.region` pref set to `IN`.

**[Steps to reproduce]:**
1. Open the browser with the profile from prerequisites.
2. Open a new tab and click the "Personalize" button.
3. Observe the available options.

**[Expected results]:**
- The "Shortcuts", "Recommended by Pocket", "Recent Activity", "Snippets" toggles, and "Row" dropdown menu are displayed.

**[Actual results]:**
- The "Sponsored stories" checkbox is also displayed.

**[Notes]:**
- The "Sponsored stories" checkbox is not available in the "about:preferences#home" page. 
- The issue is not reproducible on regions where sponsored content is supported.
Bug: Some links go to bottom of page, Walmart orders is an example.
Status: RESOLVED
Priority: --
Resolution: WORKSFORME
Created: 2021-01-04 17:19:45+00:00
Resolved: 2021-01-11 13:44:11+00:00

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:84.0) Gecko/20100101 Firefox/84.0

Steps to reproduce:

Click on Walmart home link. 



Actual results:

Manyy links, not all, go to bottom of page .  Walmart is an example.


Expected results:

Should go to top of page.
Bug: Preview of a Word attachment in Yahoo Mail is corrupted
Status: RESOLVED
Priority: --
Resolution: WORKSFORME
Created: 2021-01-04 21:53:39+00:00
Resolved: 2021-02-01 10:59:12+00:00

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:84.0) Gecko/20100101 Firefox/84.0

Steps to reproduce:

I have a Word attachment in Yahoo Mail and tried to preview the attachment. That attachment looked like garbage. If I download the attachment, it looks fine. Preview mode does not work.



Actual results:

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Expected results:

4.	Operating Budget as of December 31, 2020
Mike Pfeifer provided the following information: “Despite all the difficulties of 2020, we ended the year on a positive note financially.  The Operating Budget showed a surplus of $7,775.15.  The total budget, including capital expenses, restricted funds, fluctuations in investment accounts, etc., showed a surplus of $5,564.81.  And there’s $9,765.40 in the checking account for General Funds to start the new year.”
Bug: Address bar flickers during startup
Status: RESOLVED
Priority: P3
Resolution: INVALID
Created: 2021-01-04 22:35:23+00:00
Resolved: 2023-02-13 16:48:05+00:00

I've attached a 10% speed video to demonstrate the problem. It sometimes looks like this, where the address bar starts large, then pops down to its unfocused size, then pops back up to its focused size again. Other times it starts at its unfocused size and then pops back once to its focused size. In either case it's noisy.
Bug: Opening panels does not change focus to their contents
Status: NEW
Priority: P3
Created: 2021-01-04 22:51:47+00:00
Resolved: 2021-10-28 12:02:37+00:00

STR:

1. Click on the address bar
2. Click on the hamburger menu

Expected: the address bar loses focus and goes back to normal size
Actual: the address bar stays focused and enlarged

Note: at the very least this behavior needs to be made consistent between the hamburger menu and the other toolbar dropdowns, such as the downloads or library dropdown, neither of which leave the address bar focused.
Bug: Address bar biggening should coincide with results dropdown displaying
Status: NEW
Priority: P3
Created: 2021-01-04 23:04:04+00:00
Resolved: 2024-04-03 03:07:39+00:00

Attaching a slowed-down video of clicking the address bar in chrome vs firefox. Note that in Chrome there's effectively one visual change: the address bar just fades in in its final visual state. However, for Firefox, there's several staggered changes:

1. The address bar focuses and enlarges
2. The results dropdown shows up, with all the text populated
3. The favicons of the results and search options stagger in

The end result feels noisy. It would be nice if this could all be fast, though I imagine we've picked all the low-hanging fruit here. What seems more important to me is that at least steps 1 and 2 are merged together to limit visual changes, because at full speed it just feels glitchy and unpolished in its current state.
Bug: RAM used after updating Firefox grows without limit
Status: RESOLVED
Priority: --
Resolution: INCOMPLETE
Created: 2021-01-05 03:03:10+00:00
Resolved: 2021-01-29 15:26:39+00:00

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:84.0) Gecko/20100101 Firefox/84.0

Steps to reproduce:

I updated Firefox 75 (I think) to Firefox 84 after installing Ubuntu 20.04.


Actual results:

I started the app after the update and RAM usage grew until filling the SWAP, the system froze and I had to force shutdown and now Firefox is working.


Expected results:

I think that although it has a solution, it's a Firefox bug. Thanks for the attention.
Bug: mute whole firefox audio in all tabs
Status: UNCONFIRMED
Priority: --
Created: 2021-01-05 04:37:06+00:00
Resolved: 2021-01-20 00:17:52+00:00

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:84.0) Gecko/20100101 Firefox/84.0
Firefox for Android

Steps to reproduce:

open two tabs/webpage  in different windows, play music in both windows, click on firefox icon in task bar to close sound in one of the firefox window, it close the sound in all window not in the one it is selected to close. 



Expected results:

sound on which firefox tab it is close should be closed not from other tab.
Bug: If sync is enabled it should be explicitly loaded before making a change that should be synced
Status: NEW
Priority: P3
Created: 2021-01-05 04:38:25+00:00
Resolved: 2024-10-10 10:32:40+00:00

Because sync delays initializing itself for ~ 10 seconds after startup, there's a chance it will miss new passwords or changes made in this time - and worse, it's unlikely to ever sync the change. The simplest solution is probably to just explicitly check if sync is initialized, and if not, initialize it, before sending the notification sync observes. It's probably rare that this happens, but I'm sure it does.

(See also bug 1684405; I don't think that is a dupe because the new login did make it after an explicit sync, but that prompted me to open this)
Bug: [Mac} Keyboard shortcut:Delete - Command:Back doesn't work
Status: RESOLVED
Priority: --
Resolution: DUPLICATE
Created: 2021-01-05 10:39:04+00:00
Resolved: 2021-01-05 11:40:02+00:00

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.16; rv:86.0) Gecko/20100101 Firefox/86.0

Steps to reproduce:

Lauch Nightly and open several pages
Press "Delete" key



Actual results:

Nothing happens


Expected results:

Goes back previous page
Bug: check for default browser is in multiple (inconsistent) locations
Status: UNCONFIRMED
Priority: --
Created: 2021-01-05 14:29:38+00:00
Resolved: 2021-01-20 17:29:53+00:00

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0

Steps to reproduce:

I alternately start firefox from a link in thunderbird and a shell prompt

1: Launch Firefox by clicking on a link in an email (Thunderbird)
2: If it displays as "not default browser" , select "not now"  ... exit
3: (re)Launch Firefox by clicking on a link in an email (Thunderbird)
4: It again says "not default browser", this time select "make default" ..exit
5: (re)Launch Firefox by clicking on a link in an email (Thunderbird)
6: It no longer says "not default browser" (ie is considers it is the default)

7: Launch Firefox , by typing firefox at bash prompt
...repeat the similar sequence as for Thunderbird  ...if follows a similar pattern  ... says it's not the default until you opt to "make it the default"

So it appears there are two settings one is being used when Firefox is launched by thunderbird another when it's launched by bash

I have subsequently run firefox under strace(1) I can see it checks multiple locations but I'm unable to determine which on is the issue.


Actual results:

Making "firefox the default" when launching from thunderbird satisfies the "Firefox launched from Thunderbird" , but breaks "firefox launched from bash"   ... doing the same from "firefox launched from bash" reverses the issue


Expected results:

Selecting "Make firefox my default" should have ensured firefox is the default browser . Whatever scheme/mechanism it updates in one case should be the same as used in the other case
Bug: Error when system principal uses postMessage: Attempting to post a message to window with url "resource://pdf.js/web/viewer.html" and origin "resource://pdf.js^privateBrowsingId=1" from a system principal scope with mismatched origin "[System Principal]"
Status: NEW
Priority: P5
Created: 2021-01-05 14:50:30+00:00
Resolved: 2024-09-16 18:25:10+00:00

Since https://hg.mozilla.org/mozilla-central/rev/676c6c0096af#l3.12, PDF.js started to use `resource://pdf.js` instead of `*` to avoid bug 1449898. A consequence of this is that whenever the PDF viewer is opened in a tab with origin attributes (e.g. a private browsing window), that a non-actionable error message is printed to the console.

STR:

1. Open any PDF file in a private browsing window.
2. Open the content browser console for that tab (or the global browser console).

Expected:
- No errors.

Actual:

- > Attempting to post a message to window with url "resource://pdf.js/web/viewer.html" and origin "resource://pdf.js^privateBrowsingId=1" from a system principal scope with mismatched origin "[System Principal]".
- Fortunately, this is just an error message, the functionality works as intended

The error message was introduced in https://hg.mozilla.org/mozilla-central/rev/d74bafb4a41e96ee48b41ded94b7c17a6403a4d6
There are currently no reasonable alternatives to get rid of the error. The following are available but have disadvantages:
- Using `*` instead of the explicit origin would introduce a security regression (bug 1449898).
- Using `domWindow.wrappedJSObject.postMessage` instead of `domWindow.postMessage` would result get rid of the error, but the source origin would no longer be considered chrome-privileged (i.e. `event.source` becomes non-null, and the message is rejected) (not to mention that `postMessage` method would be from a relatively untrusted context).

Since the error is not actionable, I suggest to remove it as the simplest solution.

If the error is desirable, then a way to allow callers to avoid the error is to update the `postMessage` method to accept a (`ChromeOnly`) option to specify the expected origin attributes/principal for the target window (e.g. via a new property in the [`WindowPostMessageOptions`](https://searchfox.org/mozilla-central/rev/a0ccd492719b1ad2106f6456549be62a76f45acb/dom/webidl/Window.webidl#800-802) dictionary for `window.postMessage`).
Bug: Crash in [@ OOM | small]
Status: RESOLVED
Priority: --
Resolution: DUPLICATE
Created: 2021-01-05 15:05:56+00:00
Resolved: 2021-03-23 15:02:53+00:00

Crash report: https://crash-stats.mozilla.org/report/index/e1e0bd0d-146d-48d3-a624-8ffd40210104

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:85.0) Gecko/20100101 Firefox/85.0 ID:20201220193140

Adblock Plus - free ad blocker 3.10.1
Amazon Assistant 10.2009.18.12123 [DISABLED]
Amazon Smile Redirect 2.0.11
Amazon.com 1.3
Auto Tab Discard 0.3.7 [DISABLED]
Bing 1.3
Disable HTML5 Autoplay 2018.10.3 [DISABLED]
Dormancy 3.4.3 [DISABLED]
DuckDuckGo 1.1
Duplicate Tabs Closer 3.5.3 [DISABLED]
Firefox Lightbeam 2.1.0 [DISABLED]
Forecastfox (fix version) 4.26
Google 1.1
HTTPS Everywhere 2017.10.4.1337 [DISABLED]
Nightly Tester Tools 4.0
Nimbus Screen Capture: Screenshots, Annotate 15.6.9
NoScript 11.1.7rc3
S3.Translator 6.19 [DISABLED]
Tab Counter 0.4.1
Tabliss 2.0.3 [DISABLED]
Tabs manager 1.8
Wikipedia (en) 1.1
eBay 1.2
Bug: Javascript - Impossible to save file with "gpx" extention write "xml" instead - last version only ok before
Status: RESOLVED
Priority: --
Resolution: INCOMPLETE
Created: 2021-01-05 15:47:28+00:00
Resolved: 2021-02-12 21:51:05+00:00

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:84.0) Gecko/20100101 Firefox/84.0

Steps to reproduce:

Was working before the last version. Works whith all browsers (Chrome, Edge...)
Script :
	var blob = new Blob([gpx]);
	window.saveAs(blob, nomfic + ".gpx");
Idem whith "kml" extension


Actual results:

The result is nomfic.xml


Expected results:

nomfic.gpx
Bug: Bookmarks toolbar disappears from customize mode when reloading tab, if enabled for the new tab page only
Status: NEW
Priority: P3
Created: 2021-01-05 16:17:41+00:00
Resolved: 2021-01-15 00:18:44+00:00

1. Make sure "Bookmarks Toolbar" is set to "Only Show on New Tab"
   `browser.toolbars.bookmarks.visibility = newtab`
2. Open customize mode
3. Note that the bookmarks toolbar is shown, thanks to bug 1673403
4. Right click the customize mode tab, choose "Reload tab"

**Expected**: the bookmarks toolbar is still shown
**Actual**: the bookmarks toolbar disappears
Bug: NoScript's DEFAULT preset blocks web-fonts.
Status: RESOLVED
Priority: --
Resolution: WONTFIX
Created: 2021-01-05 18:37:58+00:00
Resolved: 2021-01-06 06:29:29+00:00

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.16; rv:86.0) Gecko/20100101 Firefox/86.0 ID:20210104172545 with NoScript 11.1.17

If Javascript it not allowed for a domain Unicode characters are not displayed, at least when specified as `content:` in a ::before CSS declaration.

Here an example (also see the screenshot):
https://dict.leo.org/englisch-deutsch/script

> content: "\f12e";

Giorgio, could you please have a look? Thanks.
Bug: WEBSITE NOT RESPONDING ERROR
Status: RESOLVED
Priority: --
Resolution: INCOMPLETE
Created: 2021-01-05 18:44:00+00:00
Resolved: 2021-01-28 15:31:10+00:00

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36

Steps to reproduce:

I opened Firefox to do research on some sites


Actual results:

whenever I open this http://mbrglassworks.com/
Firefox hangs or is not responding


Expected results:

It should open quickly.
Bug: Noticeable UI lag when deleting lots of history entries because TopSitesFeed.refresh is called for every single one
Status: NEW
Priority: P3
Created: 2021-01-05 18:58:03+00:00
Resolved: 2024-04-03 13:48:35+00:00

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.16; rv:86.0) Gecko/20100101 Firefox/86.0 ID:20210104172545

Here a profile with a recent Nightly that shows that certain Activity stream related code is running on the main thread and causing event processing delays:

https://share.firefox.dev/3pXH9Gp
Bug: "Other Bookmarks" appears on toolbar
Status: RESOLVED
Priority: --
Resolution: WORKSFORME
Created: 2021-01-05 21:33:07+00:00
Resolved: 2021-01-06 20:25:40+00:00

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0 Safari/605.1.15

Steps to reproduce:

Installed firefox


Actual results:

an "Other Bookmarks" folder is on my bookmarks toolbar that I cannot get rid of


Expected results:

It should not of appeared hear without my intereaction
Bug: Intermittent esr78 browser/components/enterprisepolicies/tests/browser/browser_policy_websitefilter.js | Uncaught exception - Page file:///this_should_be_blocked block was correct (expected=true). - threw exception: [Exception... "(null)"  nsresult:
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2021-01-05 22:05:59+00:00
Resolved: 2021-04-19 06:12:28+00:00

**Filed by:** rvandermeulen [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=325903871&repo=mozilla-esr78
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/dOz9G1wrRAW6tvw-t2Q97g/runs/0/artifacts/public/logs/live_backing.log

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