Firefox 66



Add-ons

Firefox is a multiprocess application where it is common to see 3-11 instances of Firefox.exe in Task Manager. Different tabs are run in different content processes and you can use the Options page to manage the number (although even if you only have 1 content process, there may be 2 other processes).

  1. Firefox 13.0 (Beta 3) is a fast, flexible and secure web browser with a mission: to build a better internet and make web browsing better for you. About Firefox Mozilla Firefox is a free, open source, cross-platform, graphical web browser developed by the Mozilla Corporation and hundreds of volunteers.
  2. Fennec 66 test plan Firefox for Android testing. Working notes - Informal working notes and a list of useful dashboards for release managers. All shield studies for 66.

beta web browser

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. 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

- Support Firefox Beta development

- Support PortableApps.com's development and hosting

Description

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

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)

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

6,729,032 downloadsUpdated: April 23, 2021MPL / Donationware

Surf the web using one of the world’s leading browsers and enjoy outstanding speed, flawless security, and a sleek design focused on productivity

Note: You can also download Firefox ESR or Firefox Developer Edition.

For a very long time, two titans have been disputing the supremacy in the browsing world, and Firefox has its well-deserved share of fans who would always bring into discussion its outstanding performance and the constant care it has proved over time as regards user needs.

Having embarked on a never-ending quest to quench users’ thirst for seamless speed, Firefox has been the subject of continuous refinements, which have culminated with the release of the Quantum project, which has once again confirmed the browser’s maturity.

Includes bleeding-edge technology for high speed and security

Firefox entails all the browsing tools any user out there might need and even more. It is capable of opening as many tabs as you want without making deductions from speed, and the low memory consumption is among the top promises it makes to its users. That means loading pages is done lightning fast, so you have instant access to all the websites you want to visit.

As regards safe browsing, it is definitely not a matter of if, what with the possibility of surfing the Internet via private windows as well as turning to the integrated tools aimed at disabling tracking in case you are worried about the issue. Apart from that, ensuring that your browsing history is unavailable to unauthorized users is an option, and granting the required permissions to websites you are visiting to use your location, camera, and microphone is entirely up to you.

Lets you minutely customize browsing sessions and offers sync capabilities

Needless to say, keeping track of downloads, juggling with bookmarks, and taking screenshots without leaving your browser is possible, which once again proves Firefox’s focus on productivity and collaborative work. Moreover, syncing anything ranging from bookmarks to tabs, history, passwords, add-ons, and other settings across multiple devices should help you work without any sort of interruptions, regardless of where and when you decide to do so.

Customizing the search options that best cater to your needs should not take more than a couple of seconds, and that includes selecting the default search engine.

Integrates a multitude of developer tools and resources

Furthermore, a wide assortment of customizations are available so that the browser’s behavior meet each an every expectation you might have, and an overflow menu is there for you to fill with all sorts of items (for instance History, Find, Add-ons, Email Link, etc.) you use on a daily basis but prefer not to be visible in the toolbar.

When it comes to developers, Firefox greets them with a series of tools specifically designed for them. To name a few, Toggle Tools, Web Console, Network, Inspector, Performance, Style Editor, Page Source, WebIDE, Developer Toolbar, and more should guarantee they can thoroughly inspect pages, execute code, and more.

What’s for sure is that Firefox is one of the top choices when it comes to browsers, and its commitment to offering a secure, responsive, and why not fashionable environment for users to use has been constantly shown. The product keeps on benefiting from constant updates that have managed to turn it into one of the most trust-worthy apps of its kind, and smooth browsing is one of the things it takes most pride in.

Firefox Video Guide

Filed under

Download Hubs

Firefox is part of these download collections: Web Browser, Open XPI, Open JAR, JAR Viewers

Firefox was reviewed by Anca Roman
5.0/5

Firefox 66+

SYSTEM REQUIREMENTS
  • Pentium 4 or newer processor that supports SSE2
  • 512MB of RAM / 2GB for the 64-bit version
  • 200MB of hard drive space
New in Firefox 89.0 Beta 1:
  • New:
  • Beginning in 89, you’ll notice a number of changes, including:
  • Simplified browser chrome and toolbar: Redundant or less frequently used features have been removed to focus on the most important navigation items.
Read the full changelog
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Firefox 88.0 / 89.0 Beta 3 / 90.0 Nightly

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Firefox 66 Release Date

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13 screenshots:
portable version
A portable version of this application is available: Portable Firefox
runs on:
Windows 10 32/64 bit
Windows 8 32/64 bit
Windows 7 32/64 bit
file size:
52.1 MB
filename:
Firefox Setup 88.0.exe
main category:
Internet
developer:
visit homepage

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