Mozilla Firefox 124 Is Now Available for Public Beta Testing, Here’s What to Expect
Mozilla Firefox 124 appears to be a small update, probably the smallest so far, as it only promises to update the Caret Browsing mode to also work in the PDF viewer. Caret browsing is a feature that lets you navigate and select text or elements on a web page using the keyboard.
For web developers, Firefox 124 beta adds support for the Screen Wake Lock API, which prevents devices from dimming or locking the screen when an app needs to keep running, support for the AbortSignal.any static method, and the ability to use HTTP(S) and relative URLs when creating WebSockets.