I hate to do it but I've got to uninstall this for now.

I keep getting errors saying it's slowing the browser and I'm running a multi-boot system with A Debian, 2 Ubuntu clones and Slackware 14.2 and Salix 14.2 . I'm running the Firefox release and also Developer, on all these (Dumped the ESR that Slackware and Salix came with.
I'm thinking the great reviews are mostly from Windows users.... and I don't do no stinking Weendoz....!!!

I do like it better than the others and I intend to revisit this when I get some time to troubleshoot to see if there's something I have misconfigured of if perhaps the order I have other extensions installed has an effect. Unfortunately for now it keeps hanging this laptop. don't let me discourage you from trying it, I could just have bad Karma. Didn' see a feedback link on the page , I may have missed it so I'll look again. Would really like to make this work for me and do intend to try to do proper troubleshooting but really Firefox should have built something like this in back in the Neolithic.