1242670 - Firefox freezes when loading pages with HTML5 video

Status: RESOLVED WORKSFORME

(Core :: Audio/Video: Playback, defect, P1)

Description

[william.wd]

User Agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:43.0) Gecko/20100101 Firefox/43.0
Build ID: 20151229124331

Steps to reproduce:

Accessing some link (youtube, facebook, xda blog) that has an embedded video.

FF 43
Fedora 23
Add-ons: 
UnloadTab
MEGA
MeasureIt
DownThemAll
AdBlock Plus


Actual results:

All tabs froze, entire browser


Expected results:

The page should have been loaded with no problems

Comment 1

[william.wd]

I think that it's important to say that I have never installed Flash Player

Comment 2

[Loic]

Could you test:
1) in safe mode:
https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode

2) with a clean profile:
https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

Same issue?

Comment 3

[william.wd]

I can confirm the issue in both cases you mentioned. Sorry for the delay, but it only happens at my work. In my mac it works greatly.

Comment 4

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Try setting media.gstreamer.enabled=false and see if the issue is still reproducible.

Comment 5

[william.wd]

After setting media.gstreamer.enabled=false the problem seems to be gone. Can someone explain better?

Comment 6

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Gstreamer is no longer supported because it is problematic. We removed support entirely in 46. We need to set the pref in 45 to disable it.

Comment 7

[Jean-Yves Avenard [:jya]]

assuming fixed as media.gstreamer.enabled=false in 44 and fully removed in 46.

Comment 8

[Jean-Yves Avenard [:jya]]

William, please upgrade to 44.