Comment 219 for bug 263435

In addition to the Ctrl+Alt+Letter issue, there are Java applets that use various keys that when pressed with Alt would then become system-controlled shortcuts such as Alt+F4. If there happens to be only one tab in the window with the applet, then it will usually just close without warning. What we really need is a set of options for users to decide on their own what they want and just leave the defaults as they are because it's not that big of a deal to have to click a few extra times.