ok when it works Rated 3 out of 5 stars
But it lags to computer bad after a while, and sometimes just goes into a jquery error loop making the computer unusable unless firefox is close and the computer is rebooted, This is on a vista with firefox 23.0.This review is for a previous version of the add-on (0.9.5.1).
Need more info
I am not sure of your issue. There are nearly no such issue reported since years about the extension. Except this firefox bug: https://bugzilla.mozilla.org/show_bug.cgi?id=839414
The extension contains a work-around to try to avoid it.
Also note, you need version 0.957 for FF 23.
I would be pleased that you send me a mail explaining what you see, what you found. (firstname.lastname@example.org)