Summarize the following:
Create a new Internet Explorer browsing tab and visit Facebook at www.facebook.com. If not yet signed in, enter your account details on the allocated text fields and click the "Sign In" button to proceed to your account. Click the Update Status text field at the very top of the page and start typing in the status that you want to post. Make a right-click on the Status Update text field and choose "Language" from the pop out menu. Select the language you prefer from the slide-out menu that will appear to enable Internet Explorer's built in Spell-Check tool. For a more accurate spell-checking, select "English (United States)" from the list of language available. Every time you misspell a word, a red line will appear below it telling you that the word is wrongfully spelled. To correct the spelling, right-click on the underlined word and a list of possible correct choices will appear. Select one of the suggested words from the list and it will replace the one that you misspelled.

summary: Sign into your Facebook account. Post a status. Enable Internet Explorer's Spell-Check tool. Correct spelling.

Summarize the following:
You can do this on any browser of your choosing. If you're using the Slack app for Android, iPhone, or Windows phone, tap the app to open Slack. This will redirect you to a team name entry field. On mobile, this should say "Sign in to an existing team". This should take you to your team's Slack conversation. On mobile, tap "Go" to continue. You'll also have to enter your Slack-associated email address and its corresponding password. Each channel contains a conversation, whether between two individuals or an entire group. Channels are listed on the left side of the screen. On mobile, swipe right to open the channel menu, then tap the channel you want to mute. This menu is located to the left of the search bar at the top of the screen. On mobile, tap the "#[channel name]" in the top left of your screen to open the settings menu. This will prevent you from receiving notifications from that particular channel; however, you will still be able to access the channel at any time. On mobile, tap the "Notifications" option, then tap "Mute Channel" at the bottom of the menu. You can unmute the channel by tapping the "Mute Channel" option again. Going back to the Channel Settings menu and clicking "unmute #[channel name]" will restore notifications. You can also click the bell with a slash through it next to the channel name whilst in the channel itself to unmute the channel.

summary: Open Slack's website. Click "Sign in" at the bottom of the page. Enter your team's name, then click "Continue". Click on the channel you wish to mute. Click on the gear symbol to open the Channel Settings menu. Click the "mute #[channel name]" option to mute the channel. Unmute the channel when you're ready.

Summarize the following:
There are several missions available when you play a CoD Ghosts' campaign. However, you don't need to complete all those missions to unlock Extinction mode. All you have to do is to complete the first four missions. The missions that you need to complete are namely Ghost Stories, Brave New World, No Man's Land, and Struck Down. You have to complete these missions on regular difficulty (or higher) to unlock Extinction mode. After completion, you just have to go back to the main menu and you will find that Extinction mode is already available.
summary: Complete the first four missions. Go back to the Menu.