On the subject of Firefox... Disabling Ctrl-Q is very useful.

... I have found that over time i've developed the habit of using Ctrl-W to close Windows.
I suppose this replaced the old Ctrl-F4 habit I used to have when I realised that Ctrl-F4 was very much a Windows-Only thing and that Ctrl-W was more widely supported (in particular, in Firefox, regardless of OS.)

Today after closing Firefox inadvertantly (by hitting Ctrl-Q, instead of Ctrl-W, by accident, and not for the first time!) I threw a frustrated search into Google, pondering whether Ctrl-Q could be disabled.

What do you know.... It Can. Keyconfig installed, and configuration changed.
I also took the opportunity to disable the F12 mapping for Firebug - another Firefox addon that I have installed and use very occasionally - but not often enough to justify stealing the F12 mapping (that I do have to use elsewhere - mainly when using the remote KVM on our blade chassis at work...!)

I must admit it really is great to be able to use a tool like Firefox and know that there's an addon for just about everything. :-) I have FireFTP, Adblock Plus, HTTPS-Everywhere, Firebug, Gmail Manager, NoScript and User-Agent Switcher (off the top of my head) and the best part is that I can use those addons on any of my machines, as long as they run Firefox (of a current nature). Windows, Linux, the lot.

Now if only they hadn't changed to this crummy version numbering schema they're now using to keep up with the Joneses, or is that, the Googles...