There was an issue (on Windows for sure) with the Thunderbird 10 Daily build from 2011-10-17, where add-ons would not install. Dragging an add-on file into the add-ons manager or using the Install From File option would not work. Plus the add-ons manager was acting a little odd as seemed to be randomly disabling add-ons even though I had Add-on compatibility checking disabled. Updating (Help > About Daily) to today’s (2011-10-18) Thunderbird 10 Daily should solve this issue.

Support for Firefox 3.6 may will end when Firefox 10 is released on January 31, 2012 or Firefox 11 on March 13, 2012. So how did Mozilla arrive at this time frame? Well, it is 12-weeks from the initial release of the Firefox ESR on November 8th (8.0) or December 20th (9.0). Now, you are asking what is Firefox ESR? Firefox Extended Support Release is as of now, more of proposal. The purpose of Firefox ESR is to address issues that have come up for certain groups such as small & medium business, enterprise, academic, and government with the current…

For those who want more screen space, Thunderbird 9 (scheduled for release on December 20th) will give you the ability on Windows to hide the Menu Bar (File, Edit, View) like you can now in Firefox. Just like in Firefox, you can press the ALT key or F10 to temporarily display the Menu Bar. To permanently restore, press ALT then go to View > Toolbars > Menu Bar. Alternatively, if you still have the Mail Toolbar enabled, you can right-click and select Menu Bar as well. If you want to try to Thunderbird 9 Earlybird or 8 Beta,they can be…