Mailvelope extension is not enabled/installed in your browser.

[Karl]

Hi,

There was an old thread on this. I tried the things the OP did to attempt a fix. So far, no joy.

Running Firefox 115.19.0esr (64bit). My mail host is us1.providedns.com:[port #] and they are running Roundcube email.

I installed Mailvelope extension today. Roundcube --> Settings --> Encryption shows me the error message that is the title of this post. I am able to turn on the "Use Mailvelope main keyring" option ON.

I can open the Mailvelope extension and encrypt / decrypt stuff there. Zero integration with Roundcube though. I have added the us1.providedns.com:[port #] domain as well as the Roundcube.net domain. API == ON.

I thought I would be able to encrypt / decrypt in the Roundcube tab. So far, not so.

Any insight or assistance is most greatly appreciated!
Best day from FLA~

Karl

[Pierre M-]

Hi Karl,

Did you add the roundcube domain of your email provider as described here:

Load the website you want to add to the list of authorized domains. Select the Mailvelope icon in the upper right corner of your browser to open the main menu. Select "Authorize this domain". A Mailvelope dialogue to add the new domain will open.

For me the website is https://roundcube.[my-email-provider].org, not roundcube.net. I guess in your case it should be something like roundcube.us1.providedns.com:[port #]

Step 5. of this page gives more details and shows a screenshot of the configuration window.

I had the same issue as you until I found this.
Note that in my case the error message still shows in the Roundcube Encryption settings after doing that (and enabling the checkbox), but encrypting and decrypting do work.

Cheers,
Pierre