> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.blab.co/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# System-Requirements

# Supported Browsers

Following are the supported browsers for the versions of the editor.

**Desktop Version of the Editor**

The desktop version of the editor is officially supported in the latest version of the following browsers:

* Google Chrome
* Mozilla Firefox
* Microsoft Edge
* Safari

**Note**

* The editor and published sites are not supported in Internet Explorer.

* Browsers built on Chromium version 99 and below will receive a 403 error when visiting sites.

**Tablet Version of the Editor**

The tablet version of the editor is officially supported in the latest version of the following browsers:

* Google Chrome
* Safari

**Mobile Version of the Editor**

The mobile version of the editor is officially supported in the latest version of the following browsers:

* Google Chrome on Android
* Safari on iOS

**Desktop Version of Runtime**

The desktop version of live sites are officially supported in the two most recent versions of the following browsers:

* Google Chrome
* Mozilla Firefox
* Microsoft Edge
* Safari

**Tablet Version of Runtime**

Modern tablets use the two most recent versions of the following desktop browsers:

* Google Chrome
* Mozilla Firefox
* Microsoft Edge
* Safari

**Note**

Modern tablets use desktop browsers, meaning some tablet browsers default to show the mobile version. To change this, enable Request Desktop Site in your browser settings.

**Mobile Version of Runtime**

The mobile version of live sites are officially supported in the two most recent versions of the following browsers:

* Google Chrome
* Safari

# Supported Operating Systems (Mobile and Tablet)

**Tablet Version of Editor**

The tablet version of the editor is officially supported in the latest version of the following operating systems:

* Android
* iOS

**Mobile Version of Editor**

The mobile version of the editor are officially supported in the two most recent versions of the following operating systems:

* Android
* iOS

# Browser Considerations

* If an issue you are experiencing in a certain browser cannot be replicated in a different browser, make sure the main browser you are working with has been updated to the latest version.
* Display may vary between browsers. For example, fonts do not always render in the same way between browsers. This is not something that can be controlled inside your editor and has to do with the ways browsers function.
* Beta versions of supported browsers are not supported.
* If there are issues with the editor in a certain browser, make sure they aren't caused by extensions that have been installed in the browsers.
* In order for editor to function properly in the browser, JavaScript must be enabled.
* TLS 1.2 and higher is supported.