Mozilla Firefox 79.0 32-64 bit Multilingual

Web browser without installation.

Portable Nightly MultiVersion 32-64 bit Multilingual Online (0.5 MB) 30/08/17

Select language and enter Version Number: 81.0a1

Portable Developer MultiVersion 32-64 bit Multilingual Online (0.5 MB) 19/01/18

Select language and enter Version Number: 80.0b8

Portable Firefox MultiVersion 32-64 bit Multilingual Online (0.5 MB) 07/08/17

Select language and enter Version Number: 80.0b8 or 79.0 or 78.1.0esr

or 68.11.0esr or 60.9.0esr or 52.9.0esr

Nightly, Developer and Firefox have their own profile in Data

64-bit variant of Firefox without installation.

Download Portable Waterfox MultiVersion Multilingual Online (0.5 MB) 04/02/18

Select language and enter Version Number:

Classic 2020.07.2 or Current 2020.07.2.1 (only en-US) or 56.2.14

Can use Java Runtime Environment Portable

Optimized Firefox Browser without installation.

Portable Pale Moon 28.x 32-64 bit Multilingual Online (0.5 MB) 16/08/18

Select language and enter Version Number: 28.12.0

For Windows XP download palemoon-24.7.2.win32.installer.exe and (if needed)
palemoon-24.7.2.win64.installer.exe and run
Pale_Moon_Portable_24.7.2_32-64_bit_Multilingual-Setup_Extractor.exe in same folder.

On first run, check allow Language Pack installation, click on Continue but close and restart by launcher.

PasswordFox for Firefox Portable.

Download PasswordFox 1.60 32-64 bit Multilingual Online (1 MB) 01/11/19

Extract and run PasswordFoxPortable.

NPAPI Flash Plugins

Multilingual Online will download setup in selected language (Afrikaans, Shqip, عربي, Հայերեն, অসমীয়া, Euskara, Беларуская, বাংলা (বাংলাদেশ), Bosanski, Brezhoneg, Български, Català, 中文 (简体), 正體中文 (繁體), Hrvatski, Čeština, Dansk, Nederlands, English (British), English (South African), English (US), Esperanto, Eesti keel, suomi, Français, Frysk, Pulaar-Fulfulde, Gàidhlig, Galego, Deutsch, Ελληνικά, ગુજરાતી, עברית, हिन्दी (भारत), magyar, íslenska, Bahasa Indonesia, Gaeilge, Italiano, 日本語, ಕನ್ನಡ, Қазақ, ខ្មែរ, 한국어, Latviešu, lietuvių kalba, Македонски, മലയാളം, मराठी, Norsk bokmål, Norsk nynorsk, ଓଡ଼ିଆ, فارسی, Polski, Português (do Brasil), Português (Europeu), ਪੰਜਾਬੀ, română, Русский, Српски, slovenčina, Slovenščina, Español (de Argentina), Español (de Chile), Español (de México), Español (de España), Svenska, தமிழ், తెలుగు, ไทย, Türkçe, Українська, Tiếng Việt, Cymraeg, isiZulu) and extract files.

Extract and run FirefoxPortable or PaleMoonPortable (both have their own profile).

Settings of installed Firefox should be preserved.

Multi-Users: change Profile by editing FirefoxPortable.ini or PaleMoonPortable.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 (don't work on Windows 8 and above).