I have been running firefox for about 4 years now and love it. recently I signed into firefox the page keeps running blank, i have it on my allow list.

Question

I have been running firefox now for about 4 years and love it. Recently I tried signing on and it just runs a blank page. I uninstalled it and re installed it to no avail. I have it on my allow list for my fire wall , and have tried all the fixes that i can. can you please help. I use your program as it runs my different web sites so much better than chrome or internet explorer. attached is a picture of what I encounter when I try to sign on. than You in advance. Colleen

Answer 1

Hi Colleen, assuming it isn't an external software issue, then the next few things to try are as follows:
'''Firefox's Safe Mode'''
This is a standard diagnostic tool to deactivate extensions, hardware acceleration, and some other advanced features of Firefox. More info: [[Troubleshoot Firefox issues using Safe Mode]].
If the menus are operable, you can restart Firefox in Safe Mode using either:
* "3-bar" menu button > "?" button > Restart with Add-ons Disabled
* Help menu > Restart with Add-ons Disabled
Not all add-ons are disabled: Flash and other plugins still run
After Firefox shuts down, a small dialog should appear. Click "Start in Safe Mode" (''not'' Reset).
If the menus are not operable, exit/crash Firefox and hold down the Shift key when starting it up again. A small dialog should appear. Click "Start in Safe Mode" (''not'' Reset).
Can you load any pages?
If you have the same issue, it could either be something in your settings or in Firefox's program folder. These approaches test those possibilities.
'''Create a new Firefox profile'''
A new profile will have your system-installed plugins (e.g., Flash) and extensions (e.g., security suite toolbars), but no themes, other extensions, or other customizations. It also should come with completely fresh settings databases and a fresh cache folder.
Exit Firefox and start up in the Profile Manager using Start > search box (or Run):
firefox.exe -P
''Don't delete anything here.''
Any time you want to switch profiles, exit Firefox and return to this dialog.
Click the Create Profile button, assign a name like Dec17, and ignore the option to change the folder location. Then start Firefox in the new profile you created.
Can you load any pages in the new profile?
If so, it sounds like a settings problem. If not, it could be corruption of Firefox's program files. See the "Clean Reinstall" section below.
When returning to the Profile Manager, you might be tempted to use the Delete Profile button. But... it's a bit too easy to accidentally delete your "real" profile, so I recommend resisting the temptation. If you do want to clean up later, I suggest making a backup of all your profiles first in case something were to go wrong.
To keep the new profile and migrate data, check out this article: [[Recovering important data from an old profile]].
Or as an intermediate measure, you could go back to your regular profile and try the Reset/Refresh feature. This article describes what is kept and lost in that process: [[Reset Firefox – easily fix most problems]].
'''Clean Reinstall'''
(1) Download a fresh installer for Firefox 34 from https://www.mozilla.org/firefox/all/ to a convenient location. (Scroll down to your preferred language.)
(2) Exit out of Firefox.
(3) Rename the program folder
''(32-bit Windows folder names)''
C:\Program Files\Mozilla Firefox
to
C:\Program Files\OldFirefox
''(64-bit Windows folder names)''
C:\Program Files (x86)\Mozilla Firefox
to
C:\Program Files (x86)\OldFirefox
(4) Run the installer you downloaded in #1. It should automatically connect to your existing settings.
When starting Firefox, you may need to use the profile manager to switch back to your regular profile.
Any improvement?
Note: Some recently installed plugins may exist only in that OldFirefox folder. If something essential is missing, look in these folders:
* \OldFirefox\Plugins
* \OldFirefox\browser\plugins