The Mozilla Firefox web browser is being offered in three different versions currently. Official release versions of Firefox are 3.0.x, 3.5.x and the main release Firefox 3.6.x.
There are still many users that have installed the previous release strains 3.0.x or 3.5.x even though the Firefox 3.6 release is being pushed by Mozilla.
The Mozilla developers have now decided to display a software update window to Firefox 3 users who have not yet upgraded to Firefox 3.6. This is done to inform those users that a new Firefox version is available and to aid them in downloading that new version to upgrade their version of Firefox.

The “do you want to upgrade to Firefox 3.6 now?” screen that is displayed to Firefox 3.0.x and Firefox 3.5.x users informs about the new Firefox 3.6 web browser that is available.
Options offered to the user are to get the new Firefox 3.6 browser, decline the upgrade by clicking on the No Thanks button or deferring the decision for 24 hours by clicking on the Ask Later button.
The update screen will be displayed after 60 seconds of keyboard inactivity. It can also be opened from the Help menu by selecting the “Check for updates” option there.
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