Opera Convert

Hey /not g/, I'm a longtime Opera user but the appeal of addons for my favourite sites like 4chan is appealing. I'm considering Firefox, so I want your help. Is there some beta I should be using? What extentions are really essential? How do I reproduce some of Operas better features? Best way to keep memory usage from being outrageous? What is Lolifox?
Thanks.

As an Opera zealot, I'll admit that Firefox has a pretty significant edge with some of the more obscure site-specific extensions like the 4chan one. But you should give the user javascripts at userjs.org and userscripts.org a shot if you want to add at least a few functions to Opera - Opera can use all the proper userjs scripts as well as a lot of Greasemonkey ones (although Opera scripts are better as they apply as the page loads.)

>What is Lolifox?
Customized Firefox: http://lolifox.com
Bookmarks to some imageboards, webcomics and sites like AniDB

>What extentions are really essential?
1. Tab Mix Plus
2. Chatzilla
3. 4chan
4. Not4chan Grab
5. Cutemenus - Crystal SVG
I don't mind ads, so no Adblock for me...

6. Fasterfox
7. Mouse Gestures