If you have high volume of sites to navigate, then it is always tough to keep track of all tabs in your window and it takes a lot of your valuable time and can be extremely draining at times to visit each tab to view whether the content is worth visiting or not. But now with Informational Tab Add-on for Firefox you don't have to take that burden anymore.
With Informational Tab Add-on you can view thumbnail-style preview of the web-page in each tab that enables you to view the contents of the webpage in brief before opening.
There's also a progress meter (in blue above the thumbnail) for each tab that shows you how much of a page has loaded.
Informational Tab Add-on for Firefox also has options that lets you choose whether to show the preview of the whole web-page or just partially, size of the preview, Location of the preview, Position and Style of the progress meter and much more...
Download and Install Information Tab Add-on for Firefox
Thumbnail-style preview of web-pages in each tab
With Informational Tab Add-on you can view thumbnail-style preview of the web-page in each tab that enables you to view the contents of the webpage in brief before opening. 
There's also a progress meter (in blue above the thumbnail) for each tab that shows you how much of a page has loaded.
Informational Tab Add-on Options
Informational Tab Add-on for Firefox also has options that lets you choose whether to show the preview of the whole web-page or just partially, size of the preview, Location of the preview, Position and Style of the progress meter and much more... 
Download and Install Information Tab Add-on for Firefox
Custom Search
I love this Add-On. I am going to start using from now on. I surf the web for long durations and I think it will help me stay away from malicious sites.
Cool :) thanks for sharing this add on . Will download it.
what an information you have.... Gee,thanks man, n i'll get it f you don't mind. Btw, wanna link exch?
pleased to hear from you reza...and yah let's do the link exchange,
I have added your blog to my DOFOLLOW link exchange page @ http://tech-wonders.blogspot.com/2007/12/do-follow-link-exchange.html
check it out and suggest changes if any.
Add my blog with the anchor text
"Wonderful Tech. Stuff" and ping me with a reply
This is an awesome news.Have noted all of it very carefully.I use Firefox regularly and this feature provided by Firefox is an added advantage as i also have a tendency of opening a lot of tabs at the same time while working.Great development on the part of Firefox.Look forward to hearing from you soon again.Thanks.
Nice Addon, thanks for sharing, its really helpful for me..
Very nice information..I am using Firefox since 4 years, i have also work with almost all versions. Mozilla Firefox is a versatile explorer in comparison of others.