Excellent plugin. Among all IE Tab variations, it's clear this one is the original. It's the least crashy and the fastest pages loader. However, after you update Firefox you will get a missing plugin error. It happened for me when updated Firefox from 14.0.1 to 15.0 with Windows XP Service Pack 3. I fixed this by simply disabling IE Tab, restarted Firefox, enabled it again and restarted again. We are waiting for a real fix.
Stopped working on Chrome I just wanted to try it of my favorite browser FireFox but no luck. I have always few tabs open after I installed this extension my tabs are no longer remembered. On the top of that this extension did not work. Just removed it. Too pity.
While this add-on still works, it now prevents you from clicking the star in the toolbar to add a bookmark. (You can still drag a link into the bookmark menu.) Disabled until this is fixed, since I use bookmarks more than IE tabs.