Firefox 66



beta web browser

As of March 2021, according to StatCounter, Firefox has 8.17% usage share as a 'desktop' web browser, making it the third-most popular web browser after Google Chrome (66.47%) and Safari (10.27%), its usage share across all platforms is lower at 3.76% (third-most popular after Google Chrome with 63.59% and Safari with 19.14%). The Firefox's UI/UX team just seems to operate under the idea that infrequently used UI/UX elements need to be culled, when really they should be having conversations about WHY that UI/UX element isn't being used, and what is the cost of not having it all. For example, maybe the element is just in a not great spot, or maybe it's not clear what.

Firefox 88 can be downloaded for Windows, macOS, and Linux from Mozilla's site. Because Firefox updates in the background, most users can relaunch the browser to install the latest version.

Download from PortableApps.com

Version 89.0 Beta 1 for Windows, English
114MB download / 401MB installed
Notes | All Languages | Antivirus Scan | Details

Mozilla Firefox, Portable Edition Beta can run from a cloud folder, external drive, or local folder without installing into Windows. Brew tmux config. It's even better with the PortableApps.com Platform for easy installs and automatic updates.

Also Available: Firefox Stable, Firefox ESR (Extended Support Release), Firefox Developer Edition, Firefox Nightly, Legacy versions

Firefox 66

- Support Firefox Beta development

- Support PortableApps.com's development and hosting

Description

Congratulations imessage. Mozilla Firefox, Portable Edition Test are test versions of the popular Firefox web browser or test versions of the Gecko layout engine bundled with a PortableApps.com Launcher as a portable app that are being made available for testing purposes only, and are intended for web application developers and our testing community. For everyday use, please use Mozilla Firefox, Portable Edition.

Localizations

Firefox 66+

LanguageLinkMD5
ArabicعربيDownload1e881aea1b185f7d9a3ac9a69df9cc34
Chinese (Simplified)中文 (简体)Downloadb2435d31e9740e144a092da9cde2bbe0
Chinese (Traditional)正體中文 (繁體)Downloadfd935a6455035d07153463587c237acb
CzechČeštinaDownloada019e85627cd130be53b283a009f1206
DutchNederlandsDownloada6c771a07e0b5b5bf3899f9d1bee0835
EnglishEnglishDownloadacf306caaac5658c18679ef4504bdbd5
English (British)English (British)Download6c3b6f41d66557734f8dae0447dc325f
FarsiفارسیDownloadf1bea6f089463333ee9d72f7f16f4f46
FrenchFrançaisDownload61ed9c5ff004e37d286827820e613625
GermanDeutschDownloadcca647e9fb8a4522de0438a989641596
HebrewעִבְרִיתDownloadb4f7b4228f5e2e0330d9d8c3fbbacf87
Hindi (India)हिन्दी (भारत)Downloadc124ab2a33c3bd8cd76db8e6f6d83338
HungarianMagyarDownload9012ef88938a32c520e9d469e57ea5f7
IndonesianBahasa IndonesiaDownload32e966407528bf15b261d92cb3855b46
ItalianItalianoDownloade48d72e225c8a2bc85b4af52374af842
Japanese日本語Downloada1b4af5b2278d06c9f49b8f25e1bff5c
Korean한국어Download740ce35c241d738f6fd4f130606414bc
PolishPolskiDownloadb0ede91d52c52b2e33cef9c02a2010a2
Portuguese (Brazilian)Português (do Brasil)Downloade0cc809eb03b5285900ea6ea1c9a6306
Portuguese (Portugal)Português (Europeu)Downloadd4572a52deba88b69de0b720e71c3d7c
RomanianRomânăDownload637082e9b1adefa9b4e640709e7c2386
RussianРусскийDownload7c4cf3e1f35e11c81355daff47312726
SlovakslovenčinaDownload66c7344053bbffd6aa26cfcc99caaa74
Spanish (Spain)Español (de España)Download2ded250d1a2b56ae42b771f5f30d47bf
Spanish (International)Español (internacional)Downloade05005fc4653b14b13703fbbee289261
TurkishTürkçeDownload5825c3b0b5ae22a804c806e9afee1de3

App Notes

The beta release will install alongside a standard Firefox Portable install in a FirefoxPortableTest directory. Note that PortableApps.com will release one version for each major version (example: 78b1 but not 78b2). For updates within each major release, use the internal updater. From Mozilla: 'This is pre-release software: you may encounter compatibility problems with some websites and add-ons.'

Support

For help with this app, please see the following:

  • External: Publisher Support
  • PortableApps.com: Internet Support Forum

Download Details

  • Publisher: Mozilla & PortableApps.com (John T. Haller)
  • Date Updated: 2021-04-22
  • Date Added: 2014-11-10
  • System Requirements: Windows 7, 8, 10 & WINE
  • App License: Open Source (MPL/GPL/LPGL under Mozilla EULA)
  • Source: Firefox Beta, Launcher source included, PortableApps.com Installer
  • MD5 Hash: acf306caaac5658c18679ef4504bdbd5 (English)
  • SHA256 Hash: 7192992e11e2c2de9fc0fb35393249a18b4d344cf6178ea82669e21cb39598c7 (English)

Firefox 66.0 3 64 Bit

Camerabag cinema. Mozilla®, Firefox® and the Firefox logo are registered trademarks of the Mozilla Foundation and are used under license.