For personal email, I am using an old copy of Netscape ver. 4.7. It's no good for browsing anymore because it does not support newer features and calls in the later versions of Windows, but it works great as an email utility. You can browse the internet with Internet Explorer and bring up Netscape when you need to access email. Both Netscape and IE will run simultaneously without interferring with each other. Just make sure that for the first time Netscape runs and the panel pops up, "do you want to make Netscape your default brouser", you answer, "No". IE will remain the default and Netscape will be secondary. You can start and stop Netscape at any time as needed while IE remains connected on-line. I use IE to log into my ISP's mail server to read and manage my mail on the mail server, but when I want to download emails to my computer, I fire up Netscape to do this. In this way, I can purge my email of spam and any messages that I do not want to keep, then download only the "keepers".

DA... thanks. That works at least for one test. So dose Control +/- on the active text. Strange that "Compose" doesn't affect font size while Display does. Seem either or both could be the needed function - but when composing it is Display that determines the font size. I'll Google for the pain size. Sorry to put you to that extra work/test but when I can't figure out some computer question my first thought is gardenweb/computer... not Google/Web.

Hello Sue, I would think preferences or account settings or options would be under the tools section did you look there, open thunderbird and open the tools tab in the top of the email window. Also see if this link is helpful, Here is a link that might be useful: thunderbird Mail help

Thank you. I got the add-on and it works fine.