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Add extra features and styles to make Firefox for Android your own.
CloseReview for Quick Locale Switcher by Zeus Swe
Rated 4 out of 5 stars
One of the most useful addons I have installed.
But there's one improvement I have in mind.
Additional to the other settings regarding how and when to switch locale.
It would be very simple to just have the one button in your status bar, and with one click switch between the languages you have checked, in the options menu.
The indicator of what language-pack is active could be a flag.
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