350966 - Browser crashes when opening this page with flashblock extension installed

Status: RESOLVED DUPLICATE of bug 228557

(SeaMonkey :: UI Design, defect)

Description

[Ian Batterbee]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.6) Gecko/20060728 Firefox/1.5.0.6
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.13) Gecko/20060414

Mozilla 1.7.13 crashes when opening the above unesco webpage. 
Neither Firefox/1.5.0.6 or IE have any problem with it.
It doesn't make any difference if the file is served locally

I have removed all files from the plugins directory, and reduced the page down to the bare minimum required to crash the browser (see below). The testcase is not valid HTML, but is the minimum amount of data required to crash the browser. If the clsid in the object tag is changed, no crash occurs, and all plugins have been moved to a subdirectory before starting mozilla. 

Crash occurs in gklayout.dll. AppVer 1.7.20060.41421 ModVer 1.7.20060.41421 Offset 000169a3.



Reproducible: Always

Steps to Reproduce:
1. Open the url or minimum testcase
2. Mozilla crashes.

Comment 1

[Ian Batterbee]

Attachment: Minimal testcase

Comment 2

[Tim Thorpe]

I installed a clean version of 1.7.13 and was unable to reproduce the the crash. I've also tested the page and test case in Firefox 2.0B2, and IE 7RC-1 with no issues. I know that doesn't help narrow the issue down much but it is feedback ;).

Comment 3

[Ian Batterbee]

Hmm.. on that advice, I tried creating a new profile and using that, and it works fine.

So apparently the problem is with my profile.. which is, annoying a best, because it takes ages to set it all up the way I like if I have to delete it and start again.

I'll have a play with removing lines from prefs.js and see if I can stop the crashes that way.

Comment 4

[Ian Batterbee]

I've narrowed it down to the chrome folder. 

It appears to be the flashblock extension - the only files I have in chrome are:
flashblock.jar
userChrome-example.css
userContent.css
userContent-example.css

If I move userContent.css out, then start mozilla, flashblock.jar pops up a dialog and says it is installed, and recreates userContent.css, and then mozilla tries to render the page and crashes.

If I move flashblock.jar out, mozilla displays the page fine.

The entire contents of userContent.css is:
@import url(chrome://flashblock/content/flashblock.css);

... and in THAT file (from inside the jar), is a bunch of CSS to rewrite pages that contain flash or shockwave director with a png (that you can click on to activate the swf/dcr content)

So.. is this a flashblock problem (because it only occurs when flashblock is installed), or a mozilla problem (because it crashes in a mozilla dll) ?

Comment 5

[Ian Batterbee]

Despite backing things up, I managed to stuff up my profile while doing the above testing, so removed the mozilla subdir folder entirely and restarted mozilla, set up a whole new profile, viewed the testcase (fine), installed flashblock, restarted twice (required), and then viewed the testcase again, and it crashed.

This may be a dupe of bug 228557 (assigned to core/layout), but that bug suggests that the problem was fixed in 1.7.5, and I'm seeing it here in 1.7.14.

I'll try not to bugspam anyone any further until you've had a chance to comment on this.

Comment 6

[Boris Zbarsky [:bzbarsky]]

Ian, the Gecko 1.7 branch is no longer being maintained by Mozilla.org...

Comment 7

[Ian Batterbee]

Umm okay.. have downloaded and installed seamonkey 1.0.4, installed flashplayer, installed flashblock.. opened testcase. Bug does not occur.

Marking as dupe of 228557

*** This bug has been marked as a duplicate of 228557 ***