Toolbar Countdown by igorlogius

Shows a custom countdown in the toolbar. Well technically it only shows the most significant part. (days) at least until none are left then it gradually drops (goes to hours, then minutes and finally seconds)

Short Demo Video:

https://github.com/igorlogius/toolbar-countdown/assets/67047467/203a9999-7848-4057-9519-bbd2f7ff9c56

Usage:

1. install the add-on
2. click the toolbar button
3. enter a countdown end date
4. close popup
5. (optional) grant the notification permission

Notes:

1. Can/Should i trust this addon? You can view the source code by either
   visiting the Homepage/Support Site or just saving/downloading the XPI (which
   is really just a ZIP Archive) and then extract it locally. The Sources in
   the XPI should be unofuscated and unminified (HTML,CSS and JS), so it's as
   easy to read as possible. Alternatives you can also use the
   CRX Viewer Extension by Rob W
   to inspect the XPI sources. If you have an questions, you can also open an
   issue on the support site and i'll try and answer to the best of my
   abilities. If you are no programmer and are still feeling unsure, you might
   want to visit one of the official or unoffical mozilla communities and ask
   if someone there with more knowlege can take a look. Examples:
   https://reddit.com/r/firefox , https://lemmy.world/c/firefox or
   https://chat.mozilla.org/#/room/#addons:mozilla.org
   
2. Permissions:
   This add-on tries to use the minimal number of required permissions to
   successfully fullfill its intended purpose. If you think this could be
   improved please let me know by opening an issue and i will try to look into
   it. More Details on the individual permission can be found here:
   https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/permissions
   
3. Cost/Payment:
   This Add-on is and forever will be subscription and payment free to use for
   everyone however they like. If you are feeling generous you can send me a
   tip via my bitcoin address 35WK2GqZHPutywCdbHKa9BQ52GND3Pd6h4
   
4. Stars/Reviews:
   If you found this add-on useful leave some stars or a review so others have
   an easier time finding it.
   
5. Bugs, Suggestions or Requests:
   If you have any issues (for example a site it does not work but you think it
   should) or have improvement suggestions or a feature request please open an
   issue at the Support Site