Been using firefox for almost 20 years. With their seeming lack of interest on mobile (scroll through this active post and see all the "this is the only feature mobile firefox lacks for me to switch" over years), and the direction the desktop changes are going I may be looking for another browser in the not too distant future. Been a great run so far Mozilla, and this feature alone would keep me as a user for years longer.
Firefox Mobile really needs tab groups. Pretty much every other browser has this. Please tell us the team is working on it. This is really a basic feature for browsers.
Came to say I am using only FF on desktop since 2007/2008, but I would also appreciate if the Android version had tab groups. A very dearly missed feature indeed.
Please consider this, I find it to be a feature that is sorely missing. Collections on FF Android is nice but it's not the same - different uses.
For me, tab groups tend to represent a "session" of browsing. I open up the browser, go to a website, maybe follow a few links. I would open any related links in the same tab group. If I want to open a new tab for something unrelated, I will open a full new tab.
This is a very useful organizational function for me. For instance if I was researching something and need to return to it later, that tab group will be there. (Collections for me seem too intentional / less ephemeral than this use case). With tab groups I don't need to explicitly save every tab I might want to return to as a collection, they'll just be there. And when I am done with that "session" I can easily close the whole tab group.
For all I know it's been 4 years since we last discussed this topic and I can't help but wonder what's stopping you from actively considering it - at the very least. Every browser in the league treats tab groups as a fundamental part of the browsing experience. I'm not sure if Collections are meant to be a substitute for tab groups, but they're nowhere close. Having 50 odd tabs scattered all over gives a really bad impression of productivity, let alone makes browsing feel tedious. A separate cornerstone on the New Tab page where all groups are neatly nested in one place is the most basic requirement. From there each group should be accessible as its own nested section on the New Tab page. I've recently switched to Brave for this very reason knowing well its limitations on Android. But not being able to reach a desired tab quickly, let alone categorise it more effectively is a dealbreaker in 2026 - even if comes at the cost of features I love about Firefox. Developers, please take note. It's about time tab groups become a thing on Firefox for Android.