I've compiled a list of my some of my current favorite extensions for Firefox.
- Flashblock - Just about everyone already knows about this. I think it was the first Firefox extension I ever installed.
- Web Developer - If you are in the business this is a must have. It makes it easy to edit CSS and instantly see the changes. Also allows you to disable the cache, view just about everything that's not normally visible on a page (e.g. element class and id names), and has quick access buttons to common functions like "View Source."
- Colorful Tabs - Changes the tabs' colors. Makes them stand out a little.
- Live HTTP Headers - Lets you view the HTTP Request and Response headers for a page. Optionally loads in the sidebar so you can watch them in real time.
- Session Manager - Saves you tabs, current pages, and browsing history when you exit. The next time you start everything goes back to the way you left it.
I have more, but those are the ones I use most often.
