> For the complete documentation index, see [llms.txt](https://resources.unizin.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://resources.unizin.org/policies/general-policies/browser-support-policy.md).

# Browser Support Policy

**Last updated: April 29, 2020**

## Graded browser support <a href="#browsersupportpolicy-gradedbrowsersupport" id="browsersupportpolicy-gradedbrowsersupport"></a>

Unizin provides browser support grades to allow our users to clearly know which browsers have been tested and approved for use Unizin web applications. While Unizin supports multiple browsers, the recommended browser is Google Chrome.

## Browser grades described <a href="#browsersupportpolicy-browsergradesdescribed" id="browsersupportpolicy-browsergradesdescribed"></a>

Unizin supports the use of Google Chrome, Firefox, Safari, and Microsoft Edge. The level of support is determined by each browser's grade category.

**A-grade** browsers are our recommended browsers for use with Unizin web applications. A-grade browsers are thoroughly tested with the latest version of our software and actively supported by our product development team.

**C-grade** browsers are acceptable for use with Unizin web applications. While C-grade browsers are not tested to the same degree as A-grade browsers, Unizin's product development team actively supports their use.

**X-grade** browsers are neither tested for nor approved for use with Unizin web applications. Use of an X-grade browser may result in degraded user experiences. In some cases, we will block the use of Unizin web applications through X-grade browsers.

### Supported "A" grade browsers <a href="#browsersupportpolicy-supported-a-gradebrowsers" id="browsersupportpolicy-supported-a-gradebrowsers"></a>

* Chrome current version (PC/Mac/iOS/Android)
* Firefox current version (PC/Mac)
* Microsoft Edge current version (PC)
* Safari current version (Mac/iOS)

### Supported "C" grade browsers <a href="#browsersupportpolicy-supported-c-gradebrowsers" id="browsersupportpolicy-supported-c-gradebrowsers"></a>

* Chrome most recent version \[current - 1] (PC/Mac/iOS/Android)
* Firefox most recent version \[current - 1] (PC/Mac)
* Microsoft Edge most recent version \[current - 1] (PC)
* Safari most recent version \[current - 1] (Mac/iOS)

### Unsupported "X" grade browsers <a href="#browsersupportpolicy-unsupported-x-gradebrowsers" id="browsersupportpolicy-unsupported-x-gradebrowsers"></a>

* Chrome versions older than \[current - 1]
* Firefox versions older than \[current - 1]
* Microsoft Edge versions older than \[current - 1]
* Safari versions older than \[current - 1]
* Internet Explorer
* Android browser found on some older Android mobile devices.