Where can I get a list of available commands and keys?

Question

I noticed this in a Firefox extension:

<command id="Browser:BackOrBackDuplicate" disabled="true"/>

and this in the preferences:

browser.gesture.swipe.left;  Browser:BackOrBackDuplicate

I assume from this that Browser:BackOrBackDuplicate is a function of Firefox.

I also noticed this in the extension:

<key id="key_cut" disabled="true"/>

Where can I get a list of these methods and keys by name and what they do? I tried searching for it, but I don't know what keywords to use to get the right results.

Answer 1

These commands and keys aren't documented for a reason - they are used internally by the browser and can change any time without prior notice. Extensions shouldn't touch them without a very good reason.

That said, if you really want to mess with them, you can find all of them defined in browser-sets.inc (this file becomes part of browser.xul when Firefox is compiled). Most of the commands are implemented in browser.js, some are not - you can search the code to find their implementation. You can also use DOM Inspector extension to inspect the browser window at runtime.