Can I add a key with right click to access the Firefox context menu?

Question

I often hit the right click on my trackpad on accident. With Firefox open it opens the context menu.

Can I add a key, Shift, Ctrl, alt, etc., to combine with the right click to prevent this accident happening in Firefox so often? I use Firefox with Pentadactyl if that helps.

I see that there are many similar questions, but I don't see any that fit my solution or are up to date.

Answer 1

You can use the following Javascript to disable the context menu except when activated with Alt+RightClick.

function f(ev) { if (!ev.altKey) { ev.preventDefault(); return false; } }
document.addEventListener('contextmenu',f, false)

With Pentadactyl

Since you're running pentadactyl, you can simply add the following lines to your .pentadactylrc:

:js function f(ev) { if (!ev.altKey) { ev.preventDefault(); return false; } }
:js document.addEventListener('contextmenu',f, false)

Notes

• This will only work if the Firefox setting dom.event.contextmenu.enabled is set to true. This is the default value, so it should be fine unless you (or an extension) have changed it.

  If it's been set to false, you need to change it. You can do this by opening the page about:config in Firefox, searching for the entry and double-clicking to toggle it. Alternatively, in Pentadactyl, execute the command

  set! dom.event.contextmenu.enabled=true
  

• If you want to remove the block, the can use the Javascript function

  document.removeEventListener('contextmenu',f) 
  

  So in Pentadactyl, :js document.removeEventListener('contextmenu',f)