Shrink tabs to size of favicon Rated 4 out of 5 stars
Great addon, it's really useful when you have a certain number of websites you visit often. Think of sites like Social Networks, blogs and actualities like the local newspapers' sites.
If I may make a suggestion to the developers: please add the option to only show the website's favicon and to shrink the width of the tab when another tab is active. This will create more space in the tab bar if you have 3 or more tabs 'pinned' as permanent.
As soon as this option is added, PermaTabs deserves 5 stars! ;-)