Be careful with old versions!
These versions are displayed for reference and testing purposes. You should always use the latest version of an add-on.
Add German and Finish translation.
Fix the bug on Win7 that changing the default audio device may cause the add-on stop working.
Add translations for French, Spanish, Lithuanian, Serbian and Swedish.
Add full Japanese, Dutch, Hebrew and Polish translations.
Fix bug of blocking Firefox's quiting on Ubuntu.
Add Japanese translations.
By default a button will be placed in the addon bar. Click the button to mute and click again to cancel the mute.