Firefox 3.0.1. won't start anymore




10 years ago
10 years ago


(Reporter: Jose, Unassigned)


3.0 Branch
Windows XP

Firefox Tracking Flags

(Not tracked)



(2 attachments)



10 years ago
User-Agent:       Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; InfoPath.2)
Build Identifier: Firefox 3.0.1 (can't open FF anymore, this is what I remember)

Firefox 3.0.1. won't start anymore 

These are the error messages:


no specific action had been done with FF or the computer to cause this.

Reproducible: Always

Steps to Reproduce:
1. Start computer
2. Start Firefox
3. Firefox does not start, and error's in screen shots appear
Actual Results:  
screen shots appear.
not able to use FF, as it does not start.

Expected Results:  

Comment 1

10 years ago
Created attachment 332372 [details]
First error message

Comment 2

10 years ago
Created attachment 332373 [details]
second error message

Comment 3

10 years ago
You have not made any changes, so is this the first time you tried to start this version of Firefox? Can you please try reinstalling it? From the error message (which I can not read, not being in my native language), it seems like a file is missing from the chrome, maybe it was accidentally deleted or corrupted.

Comment 4

10 years ago
no, i have FF 3.0.1 installed for some time already, and have used it on a daily basis. no changes had been done to it until it stopped starting. i also tried re-installing it, but no help there. i de-activated all extensions and plugins, then the first error message diasppeared.

in safe mode FF starts. 

any help?

Comment 5

10 years ago
If Firefox starts in Safe Mode, it sounds like an extension error (supported by your first screenshot). Can you uninstall all the extensions, re-install Firefox, then try?

Comment 6

10 years ago
i have uninstalled all extensions, except of google earth and google gears which don't let me to uninstall??? 

the error keeps appearing. 

i have also created a new profile, which then enables me to start FF in regular mode.

Comment 7

10 years ago
If you're down to just those 2 Google extensions then one of them is the cause.  You can't uninstall? Can you try disabling one?


10 years ago
Version: unspecified → 3.0 Branch

Comment 8

10 years ago
can you start reinstalling your extensions in a new profile, one at a time, then restart the browser and do a normal surfing session before installing the next one. I suggest starting with google gears...

Comment 9

10 years ago
re to: Jose   2008-08-05 15:53:12 PDT 

I de-installed also google earth and google gears and no change. 

I created a new profile, and that one starts perfectly in normal mode too. 

On the german firefox forum, somebody suggested it has to do with language settings changes, or with installing FF 2.0 in german, and on top of that FF 3.0 in english. 

In any case, I would just like to transport now my relevant profile information to the new profile, and continue working. 
That would be:
Passwords, History, Bookmarks etc.

Any help on that?

Jose, please don't delete your old profile. It would be still interesting to see which file causes this issue. You should make a backup before starting with the following test: Try to delete several files from the affected profile until Firefox starts without your mentioned errors. Hopefully you can track it down to a single file. If you are able to you can attach it to this bug but make sure that all privacy information is removed before.
@Reporter, we have not heard back from you in a while, so I am closing this bug as INCOMPLETE. You can reopen this bug if more information becomes available. Some helpful information you can provide us is found at
Last Resolved: 10 years ago
Resolution: --- → INCOMPLETE
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