Firefox is behaving strangely.  I can't login to most things like webmail or anything that requires me to click  a button to send information to a website. The back, forward, and refresh button are not working on the browser at all. I can basically only access websites that I can type in the address directly in the browser.

Your Firefox profile is corrupt, so you should delete it.  Firefox will recreate one when you start it up again.

To delete your Firefox profile:
- start a terminal session (or SSH to lectura)
- cd ~/.mozilla/firefox
- run ls to locate your profile -- it is named xxxxxxxx.default (where xxxxxxxx is some string of numbers and letters).  If you want to save  your bookmarks file, copy it (bookmarks.html) from the profile directory)  to somewhere else.
- delete the directory and its contents by running /bin/rm -r xxxxxxxx.default (substituting the 'real' name of your profile file)
- start Firefox.  There will be a short delay as it recreates your new profile directory. 
- if you backed up your bookmarks file and want to restore it, close Firefox and copy the bookmarks.html file that you saved into your new profile directory.