I have encountered a problem in Mozilla. I am unable to install/uninstall the plugins. I don't why it is happening. :( I am using Ubuntu 12.04. Please help me out
(I assume you are using
Don't delete your profile folder straightaway as there's a lot more you can do before you do something like that. There are several ways of resetting your
1) Try going to help > troubleshooting and you will see this screen (do not go to
Just click the reset option and
2) Use the special
You will receive a box like this, which should allow you to load
3) If neither of these suggestions sorts your problem out, you could run profilemanager and create a new profile and run
Then you could launch
For more on using different profiles in firefox, please see my answer here:
In addition, when you create a new profile, our old profile will not be deleted, so you will still have the data and bookmarks. However, you could set the new profile as your default by placing
You could backup your bookmarks to a html file with your old profile by going to firefox > bookmarks > import & backup > export to html. You could then import these when you have launched your new profile.
Maybe something in you settings folder got corrupt.
You may delete it (you will loose bookmarks, history, saved passwords, extensions).