1521305 - firefox is freezing on a website

Status: RESOLVED DUPLICATE of bug 1519463

(Firefox :: General, defect)

Description

[Muhammad.Fayed]

Attachment: issue.png

Hello,

I've been using Firefox since version 1 and hooked up on all versions ever since, celebrated breaking Guinness record in 2008 and I always wanted to say this... I really miss Version 3 :(

Anyway, the new versions of firefox are aweasome but it is freezing on a streaming media website while every other browser can handle it smoothly.

I think the freezing started to happen with all 50+ versions

The website is [http://seehd.pl/] like in [http://www.seehd.pl/bumblebee-watch-online/]

Thanks..

Comment 1

[Alice0775 White]

I can repro hang, Giga memory usage on Firefox65.0b11 Windows10 64bit.

Comment 2

[Johann Hofmann [:johannh]]

Not interesting for evil traps (the browser still works), but might be worth for someone to take a profile of this.

Comment 3

[Marco Bonardo [:mak]]

Could you please point us to a performance profile taken through http://perf-html.io/ ?

Comment 4

[Florian Quèze [:florian]]

When profiling, >90% of the time is spent in a script at https://c.adsco.re/ calling window.matchMedia.

Emilio, is there anything to improve from this profile? https://perfht.ml/2FDRCU4

Here are 2 other profiles where the compositor thread of the parent process is very busy: https://perfht.ml/2FHkfzJ https://perfht.ml/2FDSDLS

Comment 5

[Emilio Cobos Álvarez (:emilio)]

This is a tracking script being stupid, see bug 1519463. I'm trying to find time to fix this in bug 1490401.