Check this article: https://support.mozilla.org/en-US/kb/manage-extension-shortcuts-firefox https://support.mozilla.org/en-US/kb/manage-extension-shortc... For

Check this article: https://support.mozilla.org/en-US/kb/manage-extension-shortcuts-firefox https://support.mozilla.org/en-US/kb/manage-extension-shortc... For me, "Ctrl + ." was being used by two different extensions: Raindrop and Mult-account containers. I deleted both of these shortcuts since neither were useful for me. I'd much rather have the Firefox emoji picker respond to "Ctrl + ." in the same way as other Gnome apps.