Firefox 149 beta develops a split personality

The new beta of the next version of Firefox lets you view two web pages side by side, with a split you can drag with your mouse.

As usual when a new version of Firefox appears, the following version graduates to beta testing. Firefox 148 came out a few days ago, which means that Firefox 149 is now in beta test.

Although they're still in testing and aren't guaranteed to make it through to release, this version brings some handy novelties, such as hardware-accelerated PDF rendering, address autofill in more countries, performance tweaks for WebGL on Windows, and easier sharing. They are all good, but under the surface and not especially visible. The one we're most interested in is very visible: the beta of 149 enables "split view" by default.

Mozilla's ...