Mozilla Firefox 3.6.15 Portable Multilingual

Web browser without installation.
Download Portable Firefox 3.6.15 Multilingual Online from MegaUpload (0.4 MB)
Download Portable Firefox 4.0 Beta 12 Multilingual Online from MegaUpload (0.4 MB)
Download Portable Firefox 4.0 Beta 13 pre-release en-US Online from MegaUpload (0.4 MB)
Download Portable Firefox 3.0.19 Multilingual Online from MediaFire (0.4 MB)
Download Portable Firefox 2.0.0.20 Multilingual Online from MediaFire (0.4 MB)

Optimized Firefox Browser without installation.
Download Portable Pale Moon 3.6.13 Multilingual from MegaUpload (9.1 MB)
(md5: 58d146bea67c17b38096d33d577a7a64)
Uses the same profile as FirefoxPortable

Extract and run FirefoxPortable or PaleMoonPortable (both use the same profile).

Settings of installed Firefox should be preserved.

Multi-Users: change Profile by editing FirefoxPortable.ini with User=NameOfNewUser
Associated to Thunderbird Portable if FirefoxPortable and ThunderbirdPortable folders are in the same folder. A click on a mailto link in FirefoxPortable open a new mail in ThunderbirdPortable.