Old versions of Mozilla Firefox Portable. Latest Version.
Portable version for the most complete browser. Previous versions.
To upgrade to a newer version of Firefox Portable, just install a new copy of Firefox Portable right over your old one.
Home » Forums » Support Forums » Internet Apps Support » Firefox Portable.
It is not safe to install an older version as the main and only browser just because you need it for some purpose. A portable Firefox version can be easily installed alongside of the current release and doesn't interfere.
Mozilla Firefox, Portable Edition | PortableApps.com - Portable software for USB, portable and cloud drives. ...and/but the Sourceforge site is the also the official location... not only for current versions but all the older ones too.
Mozilla Firefox, Portable Edition (formerly known as Portable Firefox and commonly known as Firefox Portable) is a repackaged version of Mozilla Firefox created by John T. Haller. The application allows Firefox to be run from a USB flash drive, CD-ROM...
1. Download Firefox Portable from PortableApps.com, if you want an old version such as 3.6 look at the legacy versions towards the bottom of the page.
Version: 12.0.5. Date added: September 10, 2014. Operating systems: Windows, plus Linux, Unix, and BSD via Wine, and Mac OS X via CrossOver, Wineskin, WineBottler, and
Recommend the good old version: Select version of Mozilla Firefox to download: Software version. Compatibility. Release Date. Size. Download. Mozilla Firefox 50.1.0. Windows XP, Windows Vista, Windows 8, Windows 7, Windows 10.