I ran a cleaning program on my Mac (MacKeeper), and now Firefox isn't working properly (pages don't fully load, certain videos don't play, etc).
Everything was working fine until I ran a free version of MacKeeper a few days ago. Basically, there are certain pages that don't fully load anymore: Facebook will load the basic page, but comments don't appear, I can't check notifications, I can't send/receive messages; several websites only appear as text on blank background, while others (like this one) appear to be normal; certain videos won't play; etc.
I tried re-downloading Firefox, but that didn't fix anything.
Safari still works fine on my computer, but I hate using Safari. And I've personalized Firefox so much that I don't want to lose it.
I'm using a Mac OS X, Version 10.5.8
Processor 2.16 GHZ Intel Core 2 Duo
Memory 2 GB 667 MHz DDR2 SDRAM
If there is any help anyone can offer, it would be greatly appreciated!!