Check!
See if you can find the actual executable program (i.e. “Firefox.exe”). Try double-clicking on that and see if it runs. If it does run, then the problem is your shortcuts on the desktop and/or in the Start menu are just pointing to the wrong place.
Check!
Use IE to download the current versions of Firefox and other browsers and reinstall them.
Check!
That should fix them.
Nope!
Did you do anything to the computer about the time the browsers stopped working? (i.e. installed new or updated software?). It’s hard to see how multiple browser programs would suddenly stop working.
No. There was an automatic update of FF overnight. No other changes.
Is your antivirus program up to date? Of course.
Great minds think alike, it seems. But the problem is elsewhere.
Try this:
* Download Auslogics Free Registry Cleaner.
* Install and run it.
* Press "Skip" when it asks you to register.
* Press "Scan Registry" and let it run
* When it finishes, you'll see a bunch of orphaned registry entries. These can safely be fixed by pressing the correct button in Auslogics Registry Cleaner.
Reboot computer when done, re-install Firefox.
Hope that works for you,
USC