I have tried using Multirow Bookmarks Toolbar Plus and Roomy Bookmarks Toolbar Firefox add-ons, but the problem is that they are constantly stressing my CPU (even when idling). It probably has something to do with version 11 of the browser. Anyway, is there some clean way to increase the height of the bookmarks toolbar and allow it to display bookmarks on multiple rows?
I've read a lot of articles that refer to userChrome.css and I have tried a dozen solutions, but none worked because they were outdated. Please help me with this.