This is the firefox port of the chromium extension found on this repository.
Simply install it from the listing in the Firefox Add-on Store.
You can install the extension unpacked, but it will be removed after a restart. If you're using the Dev or Nightly build, you can go to about:config and set xpinstall.signatures.required to false and drop the .zip file into about:addons and it will stay installed.
- Download source code
- Unpack
- Go to about:debugging#/runtime/this-firefox
- Click on "Load Temporary Add-on"
- Select any file from the extension
You might notice that it is not possible to select a custom sound, since the popup window closes when opening the file picker. You can get around this by following these steps:
- Go to about:debugging#/runtime/this-firefox
- Find 'Psychological Tab Manager' and click on "Inspect"
- Click on the three dots '...' in the top right corner
- Enable "Disable Popup Auto-Hide"
This property resets when you close the developer console.