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firefox 5.0.1 fails to start with sqlite3.dll missing message

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ff 5.0.1 started losing all my bookmarks. I imported them and the next day they were gone again. I had other strange things happening so I decided to go back to ff 3. I uninstalled ff5.0.1 and removed the ProgramFiles directory. I installed ff3 and it worked ok. I used it to upgrade to I believe 3.0.19 ok. I then upgraded to 3.6. The upgrade appeared ok but it would not start. I got an sqlite3.dll missing message. Nothing I have done has gotten ff to start. I have uninstalled and reinstalled 5.0.1 and still be sqlite3.dll missing message. I searched my C drive for sqlite3.dll and found several stored with other applications. The FF directory had an mozsqlite3.dll but not just sqlite3.dll.

At this point I can't start FF.

ff 5.0.1 started losing all my bookmarks. I imported them and the next day they were gone again. I had other strange things happening so I decided to go back to ff 3. I uninstalled ff5.0.1 and removed the ProgramFiles directory. I installed ff3 and it worked ok. I used it to upgrade to I believe 3.0.19 ok. I then upgraded to 3.6. The upgrade appeared ok but it would not start. I got an sqlite3.dll missing message. Nothing I have done has gotten ff to start. I have uninstalled and reinstalled 5.0.1 and still be sqlite3.dll missing message. I searched my C drive for sqlite3.dll and found several stored with other applications. The FF directory had an mozsqlite3.dll but not just sqlite3.dll. At this point I can't start FF.

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I tried to start FF 5.0.1 today, hoping something had changed, afterall this is on windows, but no luck.

However I got a different message. I got "Entry Point Not Found" and "The procedure entry point sqlite3_shutdown could not be located in the dynamic link library sqlite3.dll". This was immediately on start atempt.

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Try downloading Firefox again, then uninstall Firefox, remove the program directory, and install it all over again.

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I have done this several times with different versions with no success. FF 3 worked initially but even it will not work.

Does anyone know what FF is really looking for and where it should be? There is an mozsqlite3.dll in the FF directory.

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I did a clean uninstall of FF and installed a clean download of FF 3.6.19. When I tried to start it I got an xulrunner version error message, first time I have seen this. While looking up xulrunner stuff I found info that this can be caused by security program like Zone Alarm Extreme Security which I am running. They said that the security program can sometimes prevent changes to the application.ini file. One suggestion was to install FF into a different directory using the custom install. I installed FF 5.0.1 into "Mozilla Firefox5" and FF now works!!

I can only assume that Zone Alarm was getting in the way.