← Battery Hall of Shame · #48
Firefox icon

Is Firefox draining
your battery?

Not really — it's fairly well-behaved in the background. Here's what 13 anonymous Battery Snitch devices reveal about Firefox.

B
32/100
Drain Score
Grade B — mild background drain
Blends typical (median) and worst-case (p90) background runtime.
Median / day
5 min
Worst-case (p90)
20 min
Share of a full day
<1%
Reports
13
// The lineup continues

More repeat offenders

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FAQ

Firefox & your battery

Does Firefox drain your battery?

Not really — it's fairly well-behaved in the background. Across 13 anonymous reports, Firefox runs in the background for a median of 5 min per day, earning a mild Drain Score of 32/100 (grade B).

How much battery does Firefox use in the background?

Typically it runs for about 5 min a day in the background — that's <1% of an entire day. On the heaviest devices it kept running for up to 20 min (90th percentile).

How can I stop Firefox from draining my battery?

Restrict its background activity in Settings → Apps → Firefox → Battery → "Restricted", revoke unused permissions, and disable background data if you don't need live updates. Battery Snitch finds the exact apps draining your phone and shows you what to change.

Where does this Firefox battery data come from?

It's crowdsourced from 13 real, anonymous Android devices running Battery Snitch. We rank by the median so a single outlier device can't skew the result — the more reports an app has, the more reliable its grade.

Is Firefox draining your phone?

Run a free scan and see your personal worst offenders in under a minute.

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