Great add on and at last the blue dot indicator issue fixed by FF developers

Didn't work for me at all.

Das Add on funktioniert ohne Probleme und ist sehr hilfreich.

Somehow the only extension that performs its function.

Tried installing today and that was fine. When I attempted to share something to my email, it sent the URL via a link to the developer's website, where it just hung. I finally gave up. It looks like this app is abandoned, and depends on the developer's website working to function properly, so maybe the extension is just broken now?

Can't get share button

Really like this add-on and use it all the time but, for some unknown reason, recently has started to not work upon opening Firefox. Have to disable and then enable it for it to work.

No updates for over a year, nothing posted on their Twitter page for over a year... hum!

Update: -a few months late in the game... just noticed an update! wow! Will have to take a closer look now.

２クリックでLINE、Twitter、メール、Mastodonなどあらゆるサービスに共有することができて使いやすいです。特に共有ボタンが設置されていないウェブサイトをシェアする際に役立っています。

Addon is good. Better share url for Telegram is directly to desktop App.
URL is:
tg://msg_url?url=https://www.firefox.com