Firefox 94, it works. Shortcuts seem to only work in tabs that were opened after you saved the preference. So, if the extension doesn't appear to work, restart the browser and you should be good to go!

I use this to disable Option+Home, which immediately navigates "home" (blank tab) and loses any filled-in form data on the page. Was bumping that key combo all the time because the keys are adjacent on my Kinesis!

Too many permissions for a shortcut key addon

Only thing that works

doesnt work at all :/

It's dead - I wanted to match the shortcut for the sidebar to my 'normal' system sidebar shortcut, but I can't.

A little cumbersome to set up (e.g. I forgot to press the "Save shortcuts" button and thought it wasn't working), but after it's configured, it works perfectly! I finally was able to disable Firefox's bookmarks sidebar shortcut (Ctrl+B) which I activate by mistake all the time when trying to paste something (Ctrl+V).

It definitely works on Firefox 90 (the latest). Make sure you go to the GitHub page (linked in the add-on's description) and click the "Wiki" tab near the top to make sure you're setting it up right.

To the reviewers calling people idiots: if using the add on isn't intuitive its just as bad as having a non working add on. To access the activation options you need to press the ">" on the left for each short cut.

Adding some simple tutorial would have cleared up most of the bad reviews. How can you blame people for messing up when every other add on gives you an introduction? Anyway, great add on but read the github and make sure to activate the shortcut.

not working. running v89.0.6

edit: 3 years later still doesnt work

To people who are saying this doesn't work: once you are on the 'Manage Your Extensions' page, you just need to click the little gear button near the top, and then click 'manage extension shortcuts' at the bottom of the pop-up menu. The description should perhaps be updated, but the add-on works. Make sure what you want is on the list though; and this add-on can't override existing shortcuts.

In Firefox 89 there is just no option in the addon's preferences to add a shortcut. Doesn't work.

Doesn't work

Sadly, most of the reviews saying that Shortkeys isn't working for them, are prime examples of people who haven't read (or don't understand) the extension's description as well as its documentation (on GitHub).
Some of them apparently don't understand how WebExtensions work.

If you're unsure something is working as intended and/or if you're trying to get help in that respect, you should use GitHub to file a ticket and not try to pressure them with these unwarranted reviews.

The devs haven't been noticeably active in the past couple of months, so I seriously hope that this extension will continue to work as long as possible.

This extension isn't working for me.., i wanted to assign rightAlt+leftArrow to "Go Back" but it didn't work. FYI: I tried to map "alt+left" to "Go back" but this extension failed to do so.

Doesn't work. I only want to map backspace to previous page and F5 to reload a page. Neither of these works.

Best, i save my backspace again, fuck you firefox!