1. Adblock Plus 0.7.5.3
This little baby is a great add-on for blocking all those stupid ads and banners, which helps speed up loading web pages. Yes, it blocks whatever you want by right-clicking the image and sending it to block-land.
2. IE Tab 18.104.22.16870528
This is probably one of the best add-ons, which I use often for sites that haven't got a clue and make their sites available only to IE. If you're a REAL web developer you should know how to make your site available through any browser NOT just IE.
Use this little add-on to use your Gmail account as storage. Create a dummy account and bingo-bamo you've got online storage.
4. Video DownloadHelper 2.5.3
Great application for downloading your favorite Youtube vids and playing them in your favorite Flash Player application. Now you never have to worry about Youtube keeping your favorite videos up when you can download them to your computer and view any time.
5. NoScript 22.214.171.124
6. FireFTP 0.97.1
This is a great application for moving files between your FTP server or Web Host. It all happens in FF.
7. Gmail Manager
If you have multiple Gmail accounts like me and would like to be logged into each account and be notified when there are new messages then this is the add-on for you.
8. FEBE 5.1.1
This is a nice add-on for backing up and restoring your extensions between your multiple computers.
9. iMacros for Firefox 126.96.36.199
This is a nice little add-on for managing a lot of the repetitive tasks you deal with every day.
10. SIRIUS Player 1.1
Last, but not least, the SIRIUS player for those of you that are like me and gotta listen to the Howard Stern show every day.
Feel free to contribute your picks.