Firefox 2 about to get a major update

Editor’s note: Mozilla announced that Firefox 2 will get a major update on Monday, August 25, 2008 at 6:10 pm PST. See Mike Beltzner’s comprehensive post on Mozilla Developer News, crossposted below.

Starting a little later tonight, users with the latest version of Firefox 2 will be getting an offer to update to Firefox 3. If you’re running Firefox you will see the offer in the next couple of days, though if you’re eager you can always “Check for Updates” in the “Help” menu. This is what the offer will look like:

Clicking the “Learn More” link will open a new tab with more information about Firefox 3 to help you make your decision about upgrading. From there, you have a choice:

  • select Later if you don’t want to decide now; Firefox will ask again in 24 hours
  • select Never if you don’t want to accept this upgrade offer; we might send you another offer again in the future, but it won’t be for several weeks or months
  • select Get the new version to continue on with the upgrade process!

Some of the updated features in Firefox 3 – like malware protection – required us to update our End User License Agreement (EULA), so we have to ask you to accept the new one:

Once you’ve accepted that, Firefox will download and install the update, then offer to restart the browser. When you restart, you’ll be rolling with Firefox 3!

Now, although over 90% of Firefox Add-Ons have been updated to be compatible with Firefox 3, in some cases the authors have created entirely new versions. If that happens with your favorite Add-On, you might see the following screen:

You can see exactly which Add-Ons are being flagged as potentially incompatible by clicking on Show List. As mentioned above, for most popular Add-Ons, there probably is an update available, but you’ll need to install Firefox 3 first in order to check. If you continue with the update process, when Firefox 3 starts up for the first time you’ll see the following screen:

By all means, Check Now to see if there’s a version of that Add-On which works with Firefox 3. If there is, you’ll see the following:

An update for your add-on was found

You’ll want to Install Now which will fetch the update and then continue loading Firefox 3.

If an update isn’t available, Firefox will check every day and let you know once the Add-On author has created one. If you’ve come this far and decide that you can’t live without your favorite Add-On, you can always go to and click on “Other Languages and Systems”, and click on the link to download an older version of Firefox.

Note: Please do not link directly to the update site. Instead we strongly encourage you to link to this announcement so that everyone will know what this milestone is, what they should expect, and who should be downloading to participate in testing at this stage of development.

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