286253 - Startup crash after extension [un]install if "@import" line in userContent.css

Status: RESOLVED WORKSFORME

(Core :: Layout, defect)

Description

[Rob]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.6) Gecko/20050225 Firefox/1.0.1
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.6) Gecko/20050225 Firefox/1.0.1

Firefox will crash on startup if, after installing or uninstalling an extension,
there is an "@import http://www.whatever.com/cssfile.css" line in the
userContent.css file.  This was reproducable using many different CSS files, and
many different extensions.  I'd offer Talkback info, but it doesn't seem to come
up after the crash.

Reproducible: Always

Steps to Reproduce:
1. Add an @import line to your userContent.css file.  (Use
http://www.rmpmusic.com/deviantart/blackdeviantart.css if you need a working URL.)

2. Install or uninstall an extention.

3. Restart firefox, note crash.

4. Edit the @import line out of userContent.css and restart Firefox

5. Firefox will start successfully.
Actual Results:  
Crash, with successful startup only after a manual file edit.

Expected Results:  
Started up without crashing.

Comment 1

[Robert Heck]

Same results when "@import URL("http://adblock.f2g.net/sites.css");" is in my
userContent.css.

Comment 2

[Robert Heck]

(In reply to comment #1)
> Same results when "@import URL("http://adblock.f2g.net/sites.css");" is in my
> userContent.css.
That's in Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8b2) Gecko/20050505
Firefox/1.0+ nightly build btw.

Comment 3

[Jim Roberts]

I'm seeing the same behavior in 1.0.4 as well as 
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b2) Gecko/20050512
Firefox/1.0+

However, importing local CSS files does not seem to result in the same behavior.
I have the following at the beginning of my userContent.css:

@import url("mozillaZine/mozillazine.css");
@import url("adblock/ad_blocking.css");
@import url("adblock/sites.css");

I don't experience any crashes with the above.

Comment 4

[Glenn]

I am new hear and need to know how to fix this problem.  I am using Win2k,
Firefox1.04

Comment 5

[Porges]

This remains in 1.0.6. (Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.7.10)
Gecko/20050822 Firefox/1.0.6)

Comment 6

[Glenn Jorde (old)]

(In reply to comment #5)
> This remains in 1.0.6. (Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.7.10)
> Gecko/20050822 Firefox/1.0.6)

Still present in Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b4)
Gecko/20050908 Firefox/1.4 ie 1.5 beta 1

There's no need to [un]install an extension, a simple http-import in
userContent.css will do for a crash.

Comment 7

[Porges]

Still exists in 1.5 beta 2.

Comment 8

[Mike Trethewey]

Still present in 1.5RC1.

Comment 9

[Mike Trethewey]

Still present in 1.5RC2.

Comment 10

[Micah]

Still persists in 1.5 RC 3

Comment 11

[Mike Trethewey]

Still present in 1.5 Official Release.

Comment 12

[Micah]

Still alive & well in 1.5.0.1

Comment 13

[Wladimir Palant]

AFAICT userContent.css isn't supposed to contain remotely-loaded styles. Still, it shouldn't crash. This report is in the wrong component, moving to Layout.

Comment 14

[Jason Barnabe (np)]

WFM Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9a1) Gecko/20060814 Minefield/3.0a1

Comment 15

[Jesse Ruderman on Windows]

WFM Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.3a1pre) Gecko/20090913 Minefield/3.7a1pre