Beta2 of Gmail Checker 2.2 is available. You can get it here. If everything goes well, I'll release it as version 2.2.

For anyone interested in translating the extension, please download the locale files here and then email me your translation. Very much appreciated!

New feature in this version is the ability to delete, mark as read and do other stuff to all the messages at once.

The first beta of Gmail Checker 2.2 is available here.

This version fixes the mail fetcher problem and possibly the script error mentioned here.

New features:

• You can have two Gmail accounts opened on the browser at the same time as long as one is @gmail.com (or @googlemail.com) and the other is a hosted domain.
• You can customise the action when you click on the statusbar icon. Currently, the action can be to open the menu, to check mail or to open the web page of the top account in the Account Manager.

Gmail Checker version 2.1.1, which fixes the recent login problem, has been available for a while but I forgot to announce it :) Many thanks to everyone for the debugging reports. You can get it here or on addons.mozilla.org.