Supported browsers for Salesforce vary depending on whether you use Salesforce Classic or Lightning Experience.
Supported Browsers for Salesforce Classic Salesforce Classic is supported with Microsoft® Internet Explorer® versions 9, 10, and 11, Apple® Safari® versions 5.x, 6.x and 7.x on Mac OS X, and Microsoft® Edge for Windows® 10. The most recent stable versions of Mozilla® Firefox® and Google Chrome™ are also supported. There are some limitations.
Supported Browsers for Lightning Experience Lightning Experience is supported with Microsoft® Internet Explorer® version 11, Apple® Safari® version 8.x on Mac OS X, and Microsoft® Edge for Windows® 10. The most recent stable versions of Mozilla® Firefox® and Google Chrome™ are also supported. If you’re using Microsoft® Internet Explorer® versions 7–10, you’re redirected to Salesforce Classic. There are some limitations.
Keyboard Shortcuts for Lightning ExperienceComposer Windows Use keyboard shortcuts to work efficiently Lightning Experience composer windows. Open a composer window to create tasks, jot down notes, log a call, and more. Keyboard shortcuts make it easy to cycle through the fields inside a composer and work your way through multiple composer windows that are open at the same time.
Configuring Internet Explorer If you use Internet Explorer, we recommend using the latest version that Salesforce supports. Apply all Microsoft software updates.
Configuring Firefox To ensure Salesforce works optimally with Firefox, you’ll need to do a few configurations to the browser.