Purpleslog has outlined his firefox setup. There was one or two I hadn't seen so it was a useful list, as is the comments section.
Kristan of Sources and Methods also mentions that his students use firefox a lot, I'd be interested in what extensions some they use for research purposes or other interesting extensions they may have.
Here are mine:
Security related extensions (All are recommended, first three are a must IMO)
- Adblock plus (with adblock filterset.G updater that updates adblock every week)
- Flashblock - blocks flash from opening automatically.
- CustomizeGoogle - Stops google ads. Automatically makes gmail and Greader into secure https rather than http. Creates competitor searches under multiple specific google searches like google images etc.
- FEBE - Backs up everything about my firefox.
- CLEO - works with FEBE but puts my backed up extensions into a ready to use file.
- Foxy Proxy - used in conjuction with the Vidalia/TOR software.
Top extensions I use
- LibX - This is a generic library search tool that allows you to search most libraries including universities. I use this all the time. It allows for search of authors, titles, keywords and others. It also automatically reverses an author for you, so if you see an author called joe bloggs and you highlight it and search, it reverses it to bloggs, joe for a library database search. It also puts a little sign next to books on Amazon for you, so if you an interesting book, click the sign and it'll search your uni library for the book.
- Zotero - Excellent research tool. Stores all my papers and books within my browser and allows me to tag and search through them.
- All-in-One sidebar - I use this all the time for looking up what downloads I have, to search history etc.
- Greasemonkey - Whilst other extensions actually effect your browser, greasemonkey extensions effect the webpage you are browsing itself. I only use a few and they are fairly specific to certain websites so I won't post them here.
- Auto Copy - Highlight a text on a webpage and it automatically copies to the clipboard. Saves time, but is quite confusing at first.
- Better GReader - tweaks google reader.
- BetterSearch - Tweaks numerous search engines for more indepth results.
- ConQuery - context sensitive queries.
- del.icio.us bookmarks - stores all my bookmarks and allows me to search quickly through bookmarks rather than the rediculously slow del.icio.us site (still the best social bookmarking site next to stumbleupon though).
- Dictionary Tooltip - highlight a word and it gives you the definition on the screen in a pop up window.
- Download status bar
- ErrorZilla Mod
- Foxmarks bookmark synchronizer - allows me to sync up my bookmarks with other browsers on other computers.
- Organize search engines
- pdf download
- StumbleUpon - Great for knowledge discovery if you want to find random quality websites.