Bug: Firefox downloads h264 and widevine codecs every day even though its all disabled
Status: RESOLVED
Priority: --
Resolution: INVALID
Created: 2021-01-07 07:32:31+00:00
Resolved: 2021-01-08 08:24:28+00:00

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

Steps to reproduce:

Left firefox open (Debian linux -esr release)


Actual results:

Every day these files are downloaded:
ls -ltr /tmp/tmp*
-rw------- 1 vnc vnc  511815 Jan  2 06:34 /tmp/tmpaddon
-rw------- 1 vnc vnc 4000517 Jan  2 06:34 /tmp/tmpaddon-c5b554
-rw------- 1 vnc vnc  511815 Jan  3 06:34 /tmp/tmpaddon-e0620f
-rw------- 1 vnc vnc 4000517 Jan  3 06:34 /tmp/tmpaddon-6e53dc
-rw------- 1 vnc vnc  511815 Jan  4 06:34 /tmp/tmpaddon-821b96
-rw------- 1 vnc vnc 4000517 Jan  4 06:34 /tmp/tmpaddon-b83203
-rw------- 1 vnc vnc  511815 Jan  5 06:34 /tmp/tmpaddon-7a210c
-rw------- 1 vnc vnc 4000517 Jan  5 06:34 /tmp/tmpaddon-f2b4fd
-rw------- 1 vnc vnc  511815 Jan  6 06:34 /tmp/tmpaddon-f7b154
-rw------- 1 vnc vnc 4000517 Jan  6 06:34 /tmp/tmpaddon-e0d82e
-rw------- 1 vnc vnc  511815 Jan  7 06:34 /tmp/tmpaddon-746447
-rw------- 1 vnc vnc 4000517 Jan  7 06:34 /tmp/tmpaddon-dcb93e

It appears to be these requests:
1609914257.187    281 2001:8b0::XXX NONE/200 0 CONNECT normandy.cdn.mozilla.net:443 - HIER_NONE/- -
1609914372.307 115120 2001:8b0::XXX TCP_TUNNEL/200 5265 CONNECT normandy.cdn.mozilla.net:443 - HIER_DIRECT/13.227.209.22 -
1609914857.499     92 2001:8b0::XXX NONE/200 0 CONNECT redirector.gvt1.com:443 - HIER_NONE/- -
1609914857.627     39 2001:8b0::XXX NONE/200 0 CONNECT r5---sn-aigzrn7d.gvt1.com:443 - HIER_NONE/- -
1609914858.222    818 2001:8b0::XXX TCP_REFRESH_UNMODIFIED/304 398 GET http://ciscobinary.openh264.org/openh264-linux64-2e1774ab6dc6c43debb0b5b628bdf122a391d521.zip - HIER_DIRECT/2a02:26f0:4000::216:9210 application/zip
1609914974.592 116965 2001:8b0::XXX TCP_TUNNEL/200 4008563 CONNECT r5---sn-aigzrn7d.gvt1.com:443 - HIER_DIRECT/2a00:1450:4009:34::a -
1609915027.596 170096 2001:8b0::XXX TCP_TUNNEL/200 1442 CONNECT redirector.gvt1.com:443 - HIER_DIRECT/2a00:1450:4009:816::200e -
1609935857.788    206 2001:8b0::XXX NONE/200 0 CONNECT normandy.cdn.mozilla.net:443 - HIER_NONE/- -
1609935972.870 115082 2001:8b0::XXX TCP_TUNNEL/200 5265 CONNECT normandy.cdn.mozilla.net:443 - HIER_DIRECT/13.227.209.79 -
1609957458.610    366 2001:8b0::XXX NONE/200 0 CONNECT normandy.cdn.mozilla.net:443 - HIER_NONE/- -
1609957573.720 115109 2001:8b0::XXX TCP_TUNNEL/200 5266 CONNECT normandy.cdn.mozilla.net:443 - HIER_DIRECT/13.227.209.22 -
1609979058.959    102 2001:8b0::XXX NONE/200 0 CONNECT normandy.cdn.mozilla.net:443 - HIER_NONE/- -
1609979174.036 115077 2001:8b0::XXX TCP_TUNNEL/200 5266 CONNECT normandy.cdn.mozilla.net:443 - HIER_DIRECT/13.227.209.22 -
1610000659.594     98 2001:8b0:bfcd:100::21 NONE/200 0 CONNECT normandy.cdn.mozilla.net:443 - HIER_NONE/- -

h264 is disabled (I cannot remove the plugin but it's disabled). Widevine is disabled.

How do I stop firefox downloading these files every day other than by blocking this at the proxy?


(I originally tried to register at the forums to ask how to stop this but, apparently, mozilla doesn't have 7 letters)


Expected results:

When widevine and h264 are disabled then it should not be downloading codecs every day for them.