Browser Compatibility of asm.js on Mozilla Firefox 81

Last updated on : 2022-04-10

Note:
On Mozilla Firefox 81,asm.js is Fully Supported. Let's say that if you plan to use this feature, then Mozilla Firefox users would be able to see it perfectly on Mozilla Firefox 81. If browser compatibility issues are happening across your website on Mozilla Firefox 81 then it is probably due to other web technologies.

Overview

The asm.js subset of JavaScript provides low-level, portable performance with high-level language semantics. Asm.js is intended to be a target for a compile step from languages like C/C++ into optimized JavaScript.

Fully Supported

Browser Compatibility Score

Chrome Mozilla Firefox 81
Fully Supported

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Why Test on Firefox 81

To make a right testing strategy it's important to understand how many users are actually using Firefox 81
To help you build the right browser testing matrix, here's the overall marketshare of both Firefox browser and Firefox version 81.

TOP Firefox BROWSERS (Jan 2021 - Jan 2022)

Browser Version

% Share

Release Date

Firefox 99

1.8

-0001-11-30

Firefox 98

0.68

-0001-11-30

Firefox 91

0.11

-0001-11-30

Firefox 52

0.08

-0001-11-30

Firefox 94

0.05

-0001-11-30

Firefox 78

0.05

-0001-11-30

Firefox 81

0.02

-0001-11-30

Other

1.62

-

Data Source: Statcounter.com

ALL DESKTOP BROWSERS (Jan 2021 - Jan 2022)

Browsers

% Share

Chrome

64.36

Safari

19.13

Edge

4.07

Firefox

3.41

Samsung Internet

2.84

Opera

2.07

Other

4.11

Data Source: Statcounter.com

Web Technology Support of Firefox 81

To create a automation testing strategy for checking your webapps on Firefox 81, you first need to check what technologies are supported on Firefox 81.

Here's a list of all web technologies categorized by thier support level for Firefox 81.

  • Supported (no prefixes needed)
  • Supported (some prefix)
  • At least partially supported
  • No support

Browser Support for asm.js

ChromeIE
Low

Browser Support For IE Versions

-
Fully
-
Partially
11-5.5
Not Supported
ChromeEdge
High

Browser Support For Edge Versions

18-13
Fully
99-79
Partially
12-12
Not Supported
ChromeFirefox
High

Browser Support For Firefox Versions

100-22
Fully
-
Partially
21-2
Not Supported
ChromeChrome
High

Browser Support For Chrome Versions

-
Fully
103-28
Partially
27-4
Not Supported
ChromeSafari
Low

Browser Support For Safari Versions

-
Fully
-
Partially
15.4-3.2
Not Supported
ChromeOpera
High

Browser Support For Opera Versions

-
Fully
83-15
Partially
12.1-9.5
Not Supported
ChromeSafari on iOS
Low

Browser Support For Safari on iOS Versions

-
Fully
-
Partially
15.4-3.2
Not Supported
ChromeAndroid Browser
Medium

Browser Support For Android Browser Versions

-
Fully
99-97
Partially
4-2.3
Not Supported
ChromeOpera Mobile
Medium

Browser Support For Opera Mobile Versions

-
Fully
64-64
Partially
12-10
Not Supported
ChromeChrome for Android
High

Browser Support For Chrome for Android Versions

-
Fully
100-97
Partially
-
Not Supported
ChromeFirefox for Android
High

Browser Support For Firefox for Android Versions

98-95
Fully
-
Partially
-
Not Supported
ChromeSamsung Internet
High

Browser Support For Samsung Internet Versions

-
Fully
16-5
Partially
4-4
Not Supported

About Mozilla Firefox

The Mozilla Corporation & its subsidiary, the Mozilla Corporation, developed Mozilla Firefox, or simply Firefox, a free and open-source web browser. Firefox displays web pages using the Gecko rendering engine, adhering to current and future web standards. It is a significant player in the market.

Mozilla Firefox was created in 2002 under the code name "Phoenix" by Mozilla community members who wanted more than a single program in their Mozilla Application Suite bundle. Firefox's beta version gained popularity with testers and was praised for its speed, security, and add-ons compared to Microsoft's then-dominant Internet Explorer 6.

In 2004, Mozilla released Firefox, challenging Internet Explorer's dominance. In nine months, Firefox had been downloaded more than 60 million times. Firefox is the successor of Netscape Navigator as it was created by Netscape in 1998 before its acquisition by AOL.

Firefox comes with a few useful features. For example, Firefox has tabbed browsing with individual processes per tab, a built-in pop-up blocker, private browsing, phishing detection, and a sandbox security model. One feature of Firefox that's vital to some users is that it works on multiple platforms.

Download Mozilla Firefox

Visit the official website of Mozilla Firefox to download the Firefox browser version.

Check Browser Compatibility Of Your Website On All Mozilla Firefox Versions

LambdaTest allows LambdaTest allows you to instantly spin your website on Mozilla Firefox browser versions 4 and above.

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Data sourced from

Browser Support for asm.js

  • ChromeChrome
  • Safari Safari
  • Firefox Firefox
  • IE Internet Explorer
  • Opera Opera
  • Edge Edge

Test asm.js on Real Firefox 81

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Sarah

I hope we're able to help you build browser compatible web experience.

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Sarah Elson (Product & Growth Lead)