Rated 4 out of 5 stars
This is a very innovative add-on but I am kinda annoyed at the fact that it is completely non functional on linux although it says its supported! And I had to reboot to Windows after months to try this out, however have to admit it was worth the pain. You can completely customize things to your way of browsing the web. Absolutely fascinating!
On Linux, when ever I try to click any of the tabs in about:jetpack I get an error like this,
`Firefox can't find the file at chrome://jetpack/content/jetpack.xul.'
On doing a locate on jetpack.xul I get no results. The file doesn't exist! I hope this gets fixed soon.