When I delete a contact from a group, most contacts disappear from my sidebar in "forward"
I have a number of contacts in my Jokes group. If I receive a joke from one of them that I want to pass on to the others I do the following: Right click the email and click "forward". In the pop-up contact list I right-click on the jokes group, click on "properties" and delete who the joke is from so they won't be getting it back. After clicking on "OK" the group and a lot of other contacts disappear from the sidebar so I have to save the message, go back into it, find the group in the sidebar, add the group to the "To" line and forward it (after cleaning out extraneous info). I then go back to the group and put the contact back in.
Alla svar (3)
contacts That sounds like an issue with email or a webmail service.
Firefox doesn't do email, it's strictly a web browser.
If you are using Firefox to access your mail, you are using "web-mail". You need to seek support from your service provider or a forum for that service.
If your problem is with Mozilla Thunderbird, let us know and we can move this thread to the Thunderbird queue. This question currently is in the Firefox queue for answers.
Sorry, this is a Thunderbird problem and should be in that queue
moved