It would be nice, if there was some sort of filtering present in the Tabs Panel. 

Similar to the filters like in the Bookmarks and History Panel.

E.g. you have 25 Tabs opened and you cannot find one that has “google” in its title. This is where the filter comes into play:

You enter “google” into the filterline and the tab panel now should only show the tabs that are containing “google” in their title.