Compatibility

A person should be able to use the Web whatever the device and the browser they are using.

Web Compatibility issues are related to Web sites implementing techniques that create issues for a certain class of browsers and/or devices. A person will not be able to use a Web site according to his/her own choices.

These issues are cross-platforms, cross-products and related to the Web as a whole. There are circumstances when a company will choose to use a standardized techniques which is not available for an old browser, but that should be mitigated in making the Web site usable in any circumstances. So if a person is using the last version of Firefox or a vocal browser such as Jaws, or a proxy browser such as Opera Mini or UCWeb, the Web site should be able to work.

Mozilla has two areas for dealing with Web Compatibility issues. The goal is to make the Web usable by anyone and not only Firefox products, but we will focus the efforts on solving issues for Firefox users.

Desktop Web Compatibility

The Desktop Web Compatibility effort is at this time mostly driven by volunteers. There are no specific Mozilla resources allocated on it. You are more than welcome to contribute and help solving the issues by contacting Web sites.

Mobile Web Compatibility

The Mobile Web Compatibility effort focuses on solving Web Compatibility issues with Firefox for Android and FirefoxOS. Mozilla can't fix the Web alone, so you are welcome to participate with us

Web Compatibility How-To

In case, you want to contribute time or help fix issues, you can learn how to get involved