I work on web sites all day, doing Search Engine Optimization for their pages. There's a few add-ons that make my life easier, so here they are.
Customize Google - This add-on lets you change a ton of different options, but the main reason I use it is so that I can have 100 search results on one page. Is that sweet or what?
LinkChecker - I actually found out a website had been hacked using this tool. I ran the tool and there was over 16,000 links. I use it to check all pages I put up in case I mispelled URL while editing the page. I use this addon the most.
Stealther - When you're logged into Google or just have cookies on you get skewed search results. For pure search results, this is the easiest way to see your true ranking. Turn it on, run a search, turn it back off. Firefox is supposed to release a "Privacy Mode" soon which does the same thing, but I'll still keep this addon.
NoScript - Not really a SEO related add on but if you block Google Analytics before going onto your site you won't see your own visit on your reports. Sure you can set it up through analytics to not count you, but that's a hassle when you have a lot of sites.
SearchStatus - Adds page rank and Alexa stats to the status bar (or in my case with my overbloated status bar) to the left of the top menu.
Web Developer - I use this to find out where divs are, then make changes to the css live inside the browser and then copy the changed code to the css file. Makes life so easy.
There you have it, another small portion of my add-ons. I have 21 in total, which I'm not sure if that is something to brag about or feel ashamed of.
If there are any add-ons I'm missing out on that are great for SEO please leave a comment and let me know about them!
