Hello,

From the battery usage data (since last full charge) Firefox has used: Screen time: 2hrs 33mins Background: 5hrs 46mins Totalling 19% battery usage. Even though I turned OFF allow app to run in background!! Before I turned this off, the battery usage was similar. In comparison: WhatsApp -the next highest- is: Screen time: 1hr 42mins Background: 17hrs 52mins Totalling 14% battery usage. With allow app to run in background ON.

As far as I can see, with 47% more screen time Firefox uses only 35% more battery, which is not bad.

The only thing I can think of causing this is the annoying (in my opinion) way that Firefox does not close down all open tabs when I close the app (by hitting the square control button and hitting clear all open apps button) are they still keeping Firefox running in the background as they refresh?

Firefox shouldn't keep any tabs in background after closure. Not sure why you get "background" time, maybe the reason is the way it is measured.

PLEASE add a setting to close all tabs when closing the app. When I close Firefox on my PC and then open it again, I don't get my old tabs, so it must be possible to do on android.

Please see How do I quit Firefox for Android?

Thanks for the reply, however:

First, if I have stopped Firefox from running in the background, there should not be any background time as it's theoretically not running.

Second: when I posted my rating in Google play store, the reply mentioned Firefox for android causing high battery use.

Third: when you say tabs should not be kept in the background, do you mean that tabs should close when I close Firefox? As currently when I close and then reopen Firefox, all the tabs open from the previous session are still there - even after the phone has been turned off.