Firefox will not open, error message "Firefox has stopped working"




9 years ago
8 years ago


(Reporter: randy, Unassigned)


3.5 Branch
Windows Vista

Firefox Tracking Flags

(Not tracked)


(Whiteboard: [CLOSEME 2011-2-25])



9 years ago
User-Agent:       Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; GTB6.3; SLCC1; .NET CLR 2.0.50727; InfoPath.2; .NET CLR 1.1.4322; .NET CLR 3.5.30729; .NET CLR 3.0.30729; OfficeLiveConnector.1.4; OfficeLivePatch.1.3) chromeframe/4.0
Build Identifier: Mozilla 3.5.5

I have been running Firefox 3.5.5 and on 12/14/09 there was an update for read later. Installed it and also an update for “Definition Update for Windows Defender - KB915597 (Definition 1.71.833.0)”. The update says “Install this update to revise the definition files used to detect spyware and other potentially unwanted software. Once you have installed this item, it cannot be removed.”Know Firefox will not start. I get a pop up that says "Firefox has stopped working". I followed the different options that are talked about on the Firefox help web site. In Safe mode it opens. I have uninstalled it including the profiles, restarted the computer and installed Firefox 3.5.6. It still will not open but I do not receive any error notices. In the event viewer the error is 
Fault bucket 1562455984, type 1
Event Name: APPCRASH
Response: None
Cab Id: 0

Problem signature:
P1: firefox.exe
P3: 4aef8082
P4: StackHash_2388
P6: 00000000
P7: 80000003
P8: 0236058a

Reproducible: Always

Steps to Reproduce:
1.update Definition Update for Windows Defender - KB915597 (Definition 1.71.833.0)
2.shut down for the night 
3.install read later
4. restart firefox
Actual Results:  
You get a pop up that states "Firefox has stopped working"

Expected Results:  
The browser should have opened to

I loaded Google gears 12/12/09 and have had no troubles until 12/14/09. I am using the defualt theme and dissabled all extensions and add-ons before resulting to uninstalling firefox. When I installed Firefox 3.5.6 I imported bookmarks from IE.
This update KB915597 was installed here on 15 Dec 2009 but no problem until now.

> 3.install read later

What do you mean?

Have you tried Firefox's safe-mode / creating a new profile?

Please read also:
Version: unspecified → 3.5 Branch

Comment 2

9 years ago
Firefox opens in safe mode, I disabled all the extensions and add-ons from here. closed out Firefox and restarted the computer. Tried opening Firefox again and still nothing. I then opened Firefox in safe mode and created a new profile. Closed out Firefox and restarted the computer, tried opening Firefox again and nothing. Read it later is an add-on for Firefox, there was an update that I installed.
Reporter, are you still seeing this issue with Firefox 3.6.13 or later in safe mode or a fresh profile? If not, please close. These links can help you in your testing.
Whiteboard: [CLOSEME 2011-2-25]
This bug has had the CLOSEME tag for several weeks and the date in the tag is far gone. If the reporter can still see this issue, Please retest with Firefox 3.6.x or later and a new profile ( Then please remove the closeme tag in the whiteboard, mark the bug against the proper version and comment on the bug.
Last Resolved: 8 years ago
Resolution: --- → INCOMPLETE
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