Firefox 109 comes with the new Extensions button as the new way to manage your extensions. You can click the gear icon next to an extension or use the right-click context menu to pin the extension to the toolbar (Pin to Toolbar). To (re)move the extension from the toolbar back to the Extensions button drop-down, you can use "Unpin from Toolbar" in the right-click context menu. More info about the Extensions button: *https://support.mozilla.org/en-US/kb/extensions-button *https://blog.mozilla.org/addons/2022/11/17/unified-extensions-button-and-how-to-handle-permissions-in-manifest-v3/