Okay, so recently idk why, but certain sites just don't work anymore, such that includes that I've seen so far are gmail, newegg, & ebay. They work on Internet Explorer fine, and I've reinstalled Firefox already... Any Thoughts? I haven't changed anything on firefox whatsoever.
Try clearing your private data.
Still, no luck.
Reinstall again, but this time when you uninstall it, delete the Mozilla folder from Documents and Settings\Username\Application Data.
Is it by any chance saying you have to enable cookies?
I already solved that months ago with the cookies, It's not that, and I AM accepting cookies.
Fixed! Thanks Fancy!