firefox - Feddit UK

Edge used to be unique,but then they just copied chromium.... It had much smaller scrolling which was great on touch screens. Now I have no reason to use it.
opera also used to maintain their own browser engine if i remembered correctly, but they all just dipped
Opera did have its own engine; it was a proprietary one named Presto.
Presto (browser engine) - Wikipedia

And it was really great and innovative for its time. Presto was pressing the envelope for so long while other browser engines were happy to do the bare minimum.

It’s really a shame they just moved to making their own Chromium skin but making and maintaining a Browser engine is expensive. It really is quite impressive that Firefox has lasted this long.

Yeah, didn't Opera invent tabbed browsing? Huge game changer.
They sure did! That was the main reason why I swapped to Opera from Firefox forever ago. I believe they also were the first to make the landing page where you could click regular sites that you wanted to go to as well as saving your browser session when it’s closed or crashes, restoring it when you next launch.