Firefox crashes when loading large css animation




HTML: Parser
3 years ago
3 years ago


(Reporter: nja.personal, Unassigned)


39 Branch
Windows 7

Firefox Tracking Flags

(Not tracked)





3 years ago
User Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)

Steps to reproduce:


Actual results:

Firefox begins loading CSS and crashes.

Expected results:

Firefox displays animated CSS bitmap of a man clapping.


3 years ago
OS: Unspecified → Windows 7
Hardware: Unspecified → x86

Comment 1

3 years ago
The user agent in parent post is the browser I used to post this. User agent for the version of FF that crashed is as follows: "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:39.0) Gecko/20100101 Firefox/39.0"

Comment 2

3 years ago
Loads for me, but renders and animates very slowly. No crashes, though there is a general slowdown of the browser that persists after the tab is closed.

Useragents tested with:

Mozilla/5.0 (Windows NT 10.0; WOW64; rv:41.0) Gecko/20100101 Firefox/41.0
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:41.0) Gecko/20100101 Firefox/41.0

Comment 3

3 years ago
Maybe OOM crash. Could you type about:crashes in the location bar and provide some crash links, please.
Flags: needinfo?(nja.personal)

Comment 4

3 years ago
I suppose this should actually by reported more as a hang than a crash. I'm not getting anything in about:crashes.

I try to load the page, the browser hangs, preventing me from switching tabs or doing anything else within the browser session. Only option I see is to have the operating system kill the browser. This doesn't seem to produce any report in about:crashes.
Flags: needinfo?(nja.personal)
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