The question is a little ambiguous, but from what I understand you are referring to keyboard shortcuts. If that's the case : 1. Open a new tab in FF and type "about:config" and ENTER. 2. You might get a screen asking you to proceed with caution (you should !) and click on proceed. 3. In the search bar, paste "permissions.default.shortcuts". 4. Double click on the field and enter 2 (to completely block it) and click on the tick symbol.

Hopefully, that should solve it. If not, please reply with a better explantion of the problem.

deleted.

4. Double click on the field and enter 2 (to completely block it) and click on the tick symbol.

tried before asking here, no effect, keyboard shortcuts still work. the problem is simple - as FF doesn't allow customization of its keyboard shortcuts, i want to turn them off completely.

so, as there is no help and Firefox can't provide simpliest customization ability, here's a hack-solution i found for those like me searching for one:

0/ Everything below is done with NO Firefox runing, close it beforehand

1/ App folder Firefox\browser\omni.ja -open this file with any archiver(basically it's a zip file with changed extension). Inside of omni.ja look for \chrome\browser\content\browser\browser.xhtml =extract it, this file contains keyboard shortcuts(and many interesting stuff).

2/ If you want to change some shortkeys, search for for proper blocks(example bellow) OR comment everything inside <keyset id="mainKeyset">..</keyset> =this should disable ALL shortkeys Example, changing shortkey for "Quit Firefox"

   <key id="key_quitApplication" data-l10n-id="quit-app-shortcut"
        modifiers="accel,shift"
        command="cmd_quitApplication"
        reserved="true"/>

=original block found in browser.xhtml

   <key id="key_quitApplication"
        key="w"
        modifiers="accel,shift,alt"
        command="cmd_quitApplication"
        reserved="true"/>

=edited block that makes usual Ctrl+Shift+Q to become Ctrl+Shift+Alt+W =(compare to understand what makes difference)

3/ Drop edited [browser.xhtml] into its place in [omni.ja] with NO archivation

4/ Profile folder of Firefox - Delete \startupCache folder for edits to take effect(folder will be recreated with browser start)

Hope this will help to smb stubborn and searching for solution like me.)

As far a I know then the two omni.ja archives are signed in current Firefox releases (they have a META-INF folder) and that makes it impossible to tamper with these archive files.

As far a I know then the two omni.ja archives are signed in current Firefox releases (they have a META-INF folder) and that makes it impossible to tamper with these archive files.

so, as there is no help and Firefox can't provide simpliest customization ability, here's a hack-solution i found for those like me searching for one: ...... Hope this will help to smb stubborn and searching for solution like me.)

You are truly a lifesaver - I cannot stress enough how thankful I am for this - after endless hours of fruitless searching for a solution to disable the FF hotkeys, I finally came across this.

Thank you, thank you, thank you.

NB depending on FF version (I use 68.02ESR to allow seamless accept of Flash) browser.xhtml may be browser.xul instead.