I tried FF for a long time but finally switched to Brave. Yes, I'll be downvoted for saying this but it's objectively one of my top 3 favorite browsers rn.
1. Brave
2. Edge
3. Safari
I like each of them for different reasons. Brave (after disabling annoying features such as crypto and VPN) is awesome and its iOS app is the only one which can play videos in the background, has dark mode, and syncs really well with the desktop app.
Edge is so tempting esp. with recent Microsoft Copilot which makes it so useful (I can summarize pages right in the browser, organize my tabs by telling so to the Copilot, etc.)
Safari is not a good browser per se and lacks many features and plugins, but it's minimal and doesn't drain the battery like Brave and FF.
I really wanted to like FF but it's just not cutting it anymore.