firefox problems

1. check other browsers with same website to make sure its not connection problem. if so, check your network connection settings
2. clear cookie and caches
3. rename profile folders

note, u only try #3 if other don't work, u will lose bookmarks, passwords, extensions, themes with #3 (u can backup bookmarks and passwords tho)

 

errr. if clearing cookie/cache doesn't do the trick, the your case is unique in my memory (of course, if there is some sort of extension conflict, nobody can be sure).
does rename of your profile folder solve the problem?

 

Try using a different version, as usually the "newer" versions can be a bit buggy.

I'm on 2.0 and it's rock solid, and compatible with all my extensions (and believe me I have a lot of them)

http://releases.mozilla.org/pub/mozilla.org/firefox/releases/2.0/mac/

If you'd rather the 2.0.0.1 release, just replace the 2.0 in the above link with 2.0.0.1

Don't rename the profile folder! Just drag it to the desktop, with firefox closed, and then start it up. That will automatically start it with a new profile name, and if the bugginess is gone, you can just drag/drop your bookmarks etc over into the new profile folder.

 

I recommend trying Camino and Opera, or just use Safari, as Firefox is highly overrated in my opinion.