Browser Support

Because of technology’s swift and constant rate of change, the Evergreen web team uses a standard for addressing bugs in browsers.

The most popular browsers are given full support, while less popular browsers may be untested or even totally unsupported. If you are using an unsupported browser, we encourage you to upgrade or switch to the most capable browser your computer can support.

Browsers are classified based on a per-quarter-year basis (that is, statistics including the last three months of data). The web team gets this data using Google Analytics.

Browser Classes

ClassUsageSupport Details
A>10%Browser should be explicitly tested for every published page. All bugs should be addressed.
B>5%While coding to best practices, pages are assumed to work in this browser as long as Class A browsers are fully supported, but reported bugs will still be addressed.
C<5%Browser is not supported. Content should be readable and accessible, but details, like design and layout may be lacking.

Browser Breakdown

Evergreen’s 3-month browser breakdown is as follows:

  1. Chrome: 44%—Class A
  2. Safari: 22%—Class A
  3. Firefox: 15%—Class A
  4. Internet Explorer 11: 6%—Class B
  5. Internet Explorer 10: 3%—Class C
  6. Edge: 2%—Class B—This is a special case, because Edge is the new browser that replaces Internet Explorer. Therefore, despite the low usage, we will fix bugs for it.

(Last checked: 03/30/16)

Mobile Breakdown

Mobile usage is relatively small, but it’s a fast-growing market, so we’re shifting more resources toward ensuring content is optimized for these new devices.

Evergreen’s mobile breakdown looks like this:

  1. Non-mobile users: 74%
  2. Mobile users, including tablets: 26%

(Last checked: 03/30/16)

Mobile Operating Systems (Percent of Total)

  1. iOS (Apple devices): 16%
  2. Android: 9%
  3. Windows Phone: 1%

(Last checked: 03/30/16)