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Mozilla Developer Preview, Portable Edition 3.7 Alpha 5 and Alpha 6 Pre Released (Firefox Preview)

Submitted by John T. Haller on June 26, 2010 - 11:38am
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logoMozilla Developer Preview, Portable Edition 3.7 Alpha 5 has been released. Mozilla Developer Preview is an early developer milestone of the popular Firefox web browser bundled with a PortableApps.com Launcher as a portable app that is being built on top of Mozilla's Gecko 1.9.3 layout engine, Mozilla Developer Preview Alpha is being made available for testing purposes only, and is intended for web application developers and our testing community. (For everyday use, please use Mozilla Firefox, Portable Edition.) The nightly build of Minefield 3.7 Alpha 6 Pre has also been made available. Both are packaged in PortableApps.com Format so they can easily integrate with the PortableApps.com Suite. And they're open source and completely free.

Read on for more details...

Features

The Mozilla Developer Preview of Gecko 1.9.3 Alpha is an early developer milestone containing new features of the Gecko layout engine. It is being made available for testing purposes only, and is intended for web application developers and our testing community. Current users of Mozilla Firefox should not use this Mozilla Developer Preview. Read more...

Minefield, Portable Edition 3.7 Alpha 6 Pre Nightly

A Pre-Alpha 6 release of Minefield has also been made available for those wishing to test the latest builds. The installer will automatically download the current nightly build and install it as "Minefield, Portable Edition 3.7 Alpha 6 Pre". You can update the build by reinstalling over itself. Get Minefield, Portable Edition 3.7 Alpha 6 Pre.

PortableApps.com Installer / PortableApps.com Format

Mozilla Developer Preview, Portable Edition is packaged in a PortableApps.com Installer so it will automatically detect an existing PortableApps.com installation when your drive is plugged in. And it's in PortableApps.com Format, so it automatically works with the PortableApps.com Suite including the Menu and Backup Utility.

Download

Mozilla Developer Preview, Portable Edition is available for immediate download from the Mozilla Developer Preview, Portable Edition 3.7 Alpha 5 homepage. Get it today!


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oh wow, 3.7 is so much less

oh wow, 3.7 is so much less CPU intensive and loads pages much faster! This is perfect for my everyday use! bye bye 3.6!

Safe and easy way to update from 3.6

Obviously, the advice to not update 3.6.x is sound, since you don't want to create problems. But, especially since 3.7 does bookmarks differently, and you want to try the browser with all your authenticated sessions and bookmarks (using the address bar to get to them), starting from scratch isn't the best solution.

Here's what I do, and it would be cool if the installer would automate this, as an option at least. I call it a clone upgrade.

First I start the installer to see where it wants to put the Firefox test version -- in this case, FirefoxPortableNightly. I then make a copy of FirefoxPortable (the whole folder) and rename the copy to FirefoxPortableNightly. Then, I continue the installer, it sees the old version, and performs the upgrade. So now I have Firefox 3.6.4 (it updated automatically, without asking) with my profile, as well as the new one, also with my profile.