The letter "m" is "m"portant Bewertet mit 5 von 5 Sternen

Omni bar is great, except if you want to search for something starting with the letter "m". I see others with the issue, but with no resolution. Well, I have a fix. Install this addon: https://addons.mozilla.org/en-US/firefox/addon/switch-to-tab-no-more/

The tab switching "feature" is what causes the hangup.

Diese Bewertung wurde für eine vorherige Version des Add-ons (0.7.14.20120803) abgegeben. 

Good find. However I have not seen this. Not sure if it is because of some setting that causes this problem to manifest.