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Firefox will not open in android

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When I try to open firefox on my android phone, it just closes and gives me an error message which I have attached a screen shot of.

I do not know if this is related but this happened after I scanned a qr code and tried to open it.

I have un-installed and reinstalled the app and turned my phone off then on again after reinstalling but this did not help.

Pls can you help?

When I try to open firefox on my android phone, it just closes and gives me an error message which I have attached a screen shot of. I do not know if this is related but this happened after I scanned a qr code and tried to open it. I have un-installed and reinstalled the app and turned my phone off then on again after reinstalling but this did not help. Pls can you help?
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Hello Firefox is crashing after you scanned a QR code, possibly due to corrupted data. Since reinstalling didn’t fix it, try clearing the app's cache and data: go to Settings > Apps > Firefox > Storage > Clear Cache and Clear Data. Also, ensure both your Android system and Firefox app are up-to-date, which may resolve any compatibility problems.