I've always enjoyed how tabs work in FF, mainly with them being on the bottom (which I had to find a work-around for by making the userChrome.css file - the "about:config" modification no longer works) and also being able to double left click on the tab bar to create new tabs. With the most recent update, double left clicking on the tab bar no longer has a function, and to create new tabs, I must now middle click. It's not a big deal really, but is there a way to change this back? I searched through some options on the "about:config" page, searched "tab" and found an option there: "browser.tabs.opentabfor.middleclick" that seemed promising. I changed the value to "False" but it didn't change anything - in fact, middle clicking still creates new tabs. I tried adding a modified function with "leftclick" in it, just to see if it might do anything but, nothing. Any other suggestions for restoring the double left click function to create new tabs? Thanks!