Thunderbird RSS feed

[n4472x]

I am unable to edit the url of an RSS feed in Thunderbird.  Thunderbird v156, of course.

Also, when trying to create a new feed, Thunderbird says the url is not valid.  Question:  Can the feed name contain a dot, such as    john.dough.com/feed/

Thanks,

N4472X

[siffemcon]

@n4472x, support requests aren't allowed here. Please post your question with full details at
https://support.mozilla.org/en-US/questions/new/thunderbird/form.