PortableApps.com is proud to announce the release of Mozilla Firefox® Developer Edition, Portable 49 Rev 2. Revision 2 fixes an issue where version 48 would be downloaded and then automatically updated to 49 and now downloads 49 outright. It's the developer's edition of the Mozilla Firefox web browser bundled with a PortableApps.com Launcher as a portable app, so you can do web development on the go. And it's open source and completely free.
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