It's already implemented and depends on the option to delete browsing data on quit.
@cadeyrn I don't find it in my menu

To quote myself:
… depends on the option to delete browsing data on quit
The issue is not about "delete browsing data", but to add "Exit" button. It's not the same
It's what I said: If you enable this option there _is_ an exit button. If you think there is a use case for _always_ showing an exit button, even if this options is disabled, please explain the use case. I can't think of any use case.
To close the browser otherwise it remains in background, for example
Yes, but what is the use case? With the option to delete browsing data the use case is clear: you want to force the deletion of your data. What problem does a exit button solve if you don't want to do anything on exit?
To close the process of the browser
This doesn't answer the question. I asked for the use case, from the user's point of view. Why do you want to close the process? Does the resource management of Android not work for you and you have performance problems on your device if you don't manually close your apps processes?
Don't get me wrong, I try to help you with my questions. If you want a better chance that Mozilla implements your request it should be made clear what exactly the problem is you want to solve and where the benefits in your proposed solutions are.
@cadeyrn Oh, now I understood. Basically just to can close the process. In the "older" device you have limited resources, so can close a process it's a good point, instead to go, manually, to Settings > Apps > Firefox > Force stop.
This is my point, maybe other users have other (better) points.
Sorry if I answered wrong before 😃
In-app exit buttons are non-idiomatic on Android, and entirely unnecessary.
The way to close apps on Android is to open the app switcher and swipe them away. I just tested it with adb shell top -s6, and Feinx immediately goes from ~270 MiB resident to not on the process list when I swipe it away. Upon re-opening, Fenix showed the home screen, not the previously-foreground tab, and switching to that tab caused a several-second pause as it was re-downloaded from the network.
@yump it could be useless for you, for me, but not for another user. Firefox was the top in customisation, if you don't listen to users, this is the reason why users don't use Firefox anymore. And I tell this as Rep.
In addition, just to inform you, almost all browsers have "Exit" button.
Below Opera, Brave, Dolphin and Edge:




And I tell this as Rep.
Sorry, this has no meaning at all. I was also a Rep for many years. Being a Rep does not make your opinions better or worse, your opinion is still this: the opinion of a single user. Please don't abuse your Reps title to give your arguments more weight.
Firefox was the top in customisation
This statement doesn't make sense at all since the behaviour in the new Firefx is exactly the same as in the old Firefox. In the old Firefox it was also necessary to enable this option to see the quit button.
if you don't listen to users, this is the reason why users don't use Firefox anymore
People don't use Firefox because there is no exit button? I really doubt this since there seems to be no advantage at all. I asked you for use cases and the only use case you was able to mention was something that Android is already handling for you (freeing resources). With the option to delete data on quit the situation is different - but as you know in this case there is a exit button in Firefox. And as it was explained by @yump to you there is already another, more Android-y way, to quit an app, a way that works for every app, not only for Firefox.
@cadeyrn of course Reps are not more important, I haven't said this; I've opened this issue because I'm listening the community, and a Rep should do also this.
The old version was more customisable, for example you could customise Panels, use Add-ons, etc.
It's absolutely not the same experience.
If users don't use Firefox there is one or more reasons, and one of this could be that Mozilla doesn't listen users anymore.
The old version was more customisable, for example you could customise Panels, use Add-ons, etc.
It's absolutely not the same experience.
This has nothing to do at all with your feature request so it doesn't belong here.
and one of this could be that Mozilla doesn't listen users anymore.
This is simply not true at all as you can see in many issues here. Of course they can't fulfill _every_ feature request, especially since there will always be people who don't agree with some ideas. Your feature request is a great example for that: I am glad that there is no quit button (I don't have the option enabled to delete data on quit) because, as explained, it's not needed at all and less items means easier parsing of the really relevant menu items. And some features are simple not as important as other feature and Mozilla, with their limited resources, can't work on everything at the same time. So even if Mozilla agrees with a request, sometimes people have to wait for a feature to be implemented.
Statement like "Mozilla doesn't listen users anymore" don't help you if you want that Mozilla's developers hear you because this is really disrespectful to the developers. They work hard and and that with their limited resources to build a great product to make as many people happy as possible. Please keep fair. Especially after you highlighted that you're a Rep it should really not be needed to tell you that.
I agree developers are working hardly, I didn't say the contrary, but I just say the truth in my opinion. I don't have to be a "brown-noser" to be heard.
I opened this issue because I was answering on Mozilla Response and many users asked for this feature.
In my language there were just 10-20 negative reviews, now there are more than 200, and most of them ask for Addons, Exit button, customisation, and a better first-run tutorial.
Anyway, if you don't think this could be a great feature, please close the issue.
It is useless because there is already a standard way to close apps on Android, which is two actions (a tap and a swipe, or two swipes if you disabled the button bar), exactly as fast as menu->exit would be.
The other browsers that have "exit" in their menus are wrong. It would be like having a menu item for "minimize" on desktop.
Yup, it could be also useless, but if many users ask for it, you should hear them and add it
Note that neither Chrome nor the stock Android browser on my phone has this feature. I agree that it would be redundant and not an effective use of screen real estate
@Sav22999
This behavior is same as old firefox from very old versions.
It hadn't changed in years.
Also it is same in Chrome and the latest version of brave that i used several months ago.
Also should mention here that an exit button in app won't force close or stop its background processes.
Some browsers you mentioned will keep themselves in the background even when you tap on exit button.
And not any of them force stop themselves.
When you open the recent apps screen in your phone and swipe the firefox away, it will get cleared from memory (AKA. Android will kill it)
Also if you want to force stop apps, no app would and can do that, even those that have exit button, you just need to install something like greenify or superfreezZ.
Best regards.
Ok, it's useless. You can close this issue.
Good work