Works pretty well. I have the same problem as the previous review. I am frequently sent Zoom links from new Zoom instances with different domain names, because I work with a lot of partner companies that all have their own Zoom. (So: abc_corp.zoom.us, xyzco.zoom.us, etc).

The first time I go to one of these new domains, Firefox prompts with a dialog saying: "Allow this site to open the zoommtg link with zoom.us?"

Because the tab closer moves quickly, it doesn't detect this dialog and so it doesn't give me time to check the "always allow" box. I would have to disable the add-on, reload the page, click the checkbox, then re-enable the add-on.

I found a workaround that I'm not in love with, which is to disable this dialog for *all* non-http protocols. I couldn't find a way in Firefox config, or in the options for this add-on, to *just* whitelist *.zoom.us domains and/or anything wanting to use the zoommtg protocol.

Here's that workaround if anyone's interested: https://www.reddit.com/r/firefox/comments/k64ha0/fix_allow_this_site_to_open_the_protocol_link/gg4jila/