cannot run firefox

work · 03-01-2016 10:20PM #1

I have a PC, did not use for a while and when try to open firefox the attached image appears. I have uninstalled and reinstalled?
Any ideas?
With thanks

FSL · 04-01-2016 12:21PM

After uninstalling make sure no files or folders relating to Firefox remain on your machine, then try reinstalling.

There may be an old profile which is unreadable.

Robert ninja · 04-01-2016 12:40PM

Try waterfox.

work · 04-01-2016 03:45PM

FSL wrote: »

After uninstalling make sure no files or folders relating to Firefox remain on your machine, then try reinstalling.

There may be an old profile which is unreadable.

How do I find this and delete it?

work · 04-01-2016 03:48PM

Robert ninja wrote: »

Try waterfox.

I have used firefox for years and it behaves really well. If I can keep it working I will.

I thought you were just telling a really bad joke "waterfox" unstead or firefox....I really feel ignorant at times.

maki · 04-01-2016 08:26PM

First thing to try is to refresh Firefox. Hold shift while starting it and you should get that option.

Alternatively, hit Windows Key + R to get the run command dialog, then type in: firefox.exe -P
This should bring up the profile manager where you can delete any corrupt profiles.

Be aware if you delete a profile you'll lose all history and bookmarks associated with it.

work · 05-01-2016 11:57PM

maki wrote: »

First thing to try is to refresh Firefox. Hold shift while starting it and you should get that option.

Alternatively, hit Windows Key + R to get the run command dialog, then type in: firefox.exe -P
This should bring up the profile manager where you can delete any corrupt profiles.

Be aware if you delete a profile you'll lose all history and bookmarks associated with it.

I tried the first method (Shift etc ) and still the same box comes up.

firefox.exe -P doesn't see to work either (see attachment).

Any other ideas or am I doing something wrong.....REALLY ANNOYING....

FanadMan · 06-01-2016 05:30AM

work wrote: »

I tried the first method (Shift etc ) and still the same box comes up.

firefox.exe -P doesn't see to work either (see attachment).

Any other ideas or am I doing something wrong.....REALLY ANNOYING....

From the screenshot you typed firefox.exe-p

You need to make sure there is a space after .exe
eg firefox -p (there is no need to even use .exe

yoyo · 06-01-2016 06:33PM

Navigate to the following folder location on your C: drive:
C:\Users\YOUR_USER_NAME\AppData\Roaming\Mozilla\Firefox\Profiles

Make sure "Show Hidden files & folders" is enabled under Folder options. A quick way to get to the AppData Roaming folder is to type Windows key + R and type %appdata% followed by enter.
Make sure firefox is fully closed and move the <randomletters>.default folder to another location. The next time you start Firefox it will recreate the profile.

Nick

cannot run firefox

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