Which browsers are supported?

Stack Overflow for Teams supports the current and one previous stable release only of most common browsers, and does not support developer or beta releases. Some browsers are partially supported and not all site functionality will work, but bugs may still get fixed at Stack Overflow's discretion.

BrowserSupportComments
FirefoxCurrent and One PreviousSee current version status from Wikipedia.
ChromeCurrent and One PreviousSee current version status from Wikipedia.
SafariCurrent and One PreviousSee current version status from Wikipedia.
EdgeCurrent and One PreviousSee current version status from Wikipedia.
Safari for iOSPartial
Firefox for MobilePartial
Chrome for iOSPartial
Internet ExplorerNot Supported

What else do I need?

Stack Overflow relies on several third party services and domains for things like authentication and email communications which may need to be white-listed by your IT department. For full functionality and the best possible experience, the following resources must be accessible:

External ServicesReason
GoogleAuthentication (via OAuth)
FacebookAuthentication (via OAuth)
Browser FeaturesReason
JavaScriptBasic Site Functionality
CookiesAuthentication and Some Site Functionality
Email CommunicationsReason
@stackoverflow.comCommunications directly with Stack Overflow employees and support channels.
@stackoverflow.emailAutomatic communications such as registration, password recovery, and newsletters.