Firefox crashes every time I close Gmail

Posted on 2009-04-22
Last Modified: 2013-12-07
Every time I close or navigate away from GMail, it crashes. Sometimes there is and error, sometimes there isn't. I tried uninstalling Firefox completely; I even checked the box that makes the uninstaller remove customizations and everything. I did notice, though, that my Roboform toolbar is still there when I reinstall Firefox, without me adding it. I have also tried running Firefox in Safe Mode. The problem still happens.

Here is the error it gives me sometimes:

Problem signature:
Problem Event Name: APPCRASH
Application Name: firefox.exe
Application Version:
Application Timestamp: 49cbcea4
Fault Module Name: ntdll.dll
Fault Module Version: 6.0.6001.18000
Fault Module Timestamp: 4791a7a6
Exception Code: c0000005
Exception Offset: 000658c8
OS Version: 6.0.6001.
Locale ID: 1033
Additional Information 1: bda5
Additional Information 2: 63cd98f628e080e187975e9ecd71fae7
Additional Information 3: 2ffc
Additional Information 4: a7791f4d071aca59ec00c4a7328f40a3
Question by:cowboygeek
    LVL 97

    Accepted Solution

    Hello cowboygeek,

    1. Check if an addon is interfering.  Go to Tools > Addons and disable the addons. Click OK.

    If Firefox does not open, go to Start > Programs > Mozilla Firefox > Mozilla Firefox (Safe Mode)

    2. Check if a program running in the background is interfering. Disable firewall, antivirus, antispyware, spam blocker, and desktop programs.

    3. Clear your cookies and cache files. Go to Tools > Options > Privacy tab. Under Private Data, click "Clear Now" button.  Click OK.

    4. If no joy, your profile is corrupt. Create a new Firefox profile

    Then migrate your settings to new profile

    5. Run Firefox Standard Diagnostics

    6. If no joy, back up your bookmarks.  Uninstall Firefox and delete your Firefox profile files.  Then do a clean install of Firefox.

    Hope this helps!

    Author Closing Comment

    I actually started doing this before your reply, but the reply confirmed that what I was doing was correct. One thing I did that wasn't in your post was to delete the remaining Firefox program files, as well as the Profile files in my AppData Folder. After deleting everything and reinstalling, the problem was fixed. Thanks!

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