User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b6) Gecko/20100101 Firefox/4.0b6 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.9) Gecko/20100915 Lightning/1.0b2 Thunderbird/3.1.4 When i read a email and press Ctrl + or Ctrl - nothing happens. If i go to the View menu > Zoom > Zoom In, it zooms in and then the keyboard shortcuts work fine. So until i use the menu function to zoom the keybinds don't work, afterwards they work fine. Reproducible: Always Steps to Reproduce: 1. Press Ctrl + or Ctrl - , doesn't work 2. Zoom in from menu works 3. After that Ctrl + and Ctrl - start to work fine Actual Results: After that Ctrl + and Ctrl - start to work fine Expected Results: The keybinds should work fine by default and not need the extra step.

PS: the thunderbird window is in focus, even tried to select some text to be sure it's the active window, but whatever i do until i use zoom once from the menu i can't use the keybinds.