Rated 5 out of 5 stars

Very convinient! I can not change my brouser for Firefox 3.5 until this addon adjust to Firefox 3.5.

This review is for a previous version of the add-on (0.3.1.0). 

Right Links already supports Firefox 3.5 and nightly builds of Firefox 3.6a1pre.
Please try check for updates (for install compatibility update) or reinstall it (browser must be online).