I have been using Gmail for years, straight from when it started, and I was redirecting my domains names to my main Gmail account. Then a few days ago, I decided to make the switch and start using Google Apps so that I would have all the services attached to my own domain. But the the default Gmail button on the Google toolbar for Firefox always go to gmail.com rather than my domain. Also, it opens to http:// rather than https://.
So finally I found online how to fix this:
Open the Options of the (latest version of the) Google Toolbar, go to buttons, select the Gmail button, click edit, then click the “use the advanced editor” link. It opens a page with the code associated with this button and you can change all the “http://mail.google.com/mail/” into “https://mail.google.com/a/yourdomain.com/”, save and close. This also changes which mail archive it will search into when you look for an email directly from the toolbar.
I didn’t find how to make my own domain open a blank email message when I click a “mailto:” link on a website yet. So far, it is always trying to open Gmail for my main Google account. If anyone knows how to fix this, please comment below. Thanks.