I can't access the site with Firefox either actually. Chrome works fine but not Firefox. I can access the forums with Firefox though

Not sure what your guys issue is. I've been using firefox all along. You should probably clear you cache.

I'm using FF,too, and haven't had any problems.

Same here, no problems with firefox (firefox 15.0 for Ubuntu).

I also use Firefox and everything is fine.

I've noticed that the "next" and "previous" pages in alphabetical order tags have disappeared from the top of the pages for some reason. Was that intentional?

I've also noticed that I can't see a upload multiple files page anymore. Is that also intentional?

If you look back at this thread (specifically this post) you will see that these 2 extensions are no longer compatible.

The right side of the Main page is replaced with "{{Dynamic}}". This is only my problem? Browser: Firefox 12.0.

The view of Main page:
http://s018.radikal.ru/i514/1209/53/4118008e5500.jpg

If you look back at this thread (specifically this post) you will see that this extension is no longer compatible.