I've been using WP for over a year now and never had a problem like this one. In my dashboard area, I'm all of sudden not able to click on any of the dropdown menus, upload images button, Visual/HTML view button, etc...). However, the hyperlinked items, such as if I click on "Posts" still works, but I can't add images to my posts or switch between html/visual view when writing a new post.
I'm using WP 2.8.5. I upgraded to 2.9.1 on one of my other blogs and it didn't help. I disabled all of my plugins and that didn't make a difference. This problem is affecting all four of my WP blogs.
Could this be some kind of compatibility issue in Firefox or something? I don't think I've made any major changes within WP, my hosting account or in Firefox lately. This problem seemed to pop-up out of nowhere.
Any help is appreciated :)