Thanks for reporting! Does this happen on all pages or only certain pages? Does it seem like it happens only if you tap through very quickly? The error is happening in the [GeckoViewPrintDocumentAdapter](https://searchfox.org/mozilla-central/rev/f9f9b422f685244dcd3f6826b70d34a496ce5853/mobile/android/geckoview/src/main/java/org/mozilla/geckoview/GeckoViewPrintDocumentAdapter.java#180). It seems like a race condition could be at play here.
Bug 1946684 Comment 3 Edit History
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Thanks for reporting! A few questions could help us debug: * What model is your device? * Does this happen on all pages or only certain pages? * Does it seem like it happens only if you tap through very quickly? The error is happening in the [GeckoViewPrintDocumentAdapter](https://searchfox.org/mozilla-central/rev/f9f9b422f685244dcd3f6826b70d34a496ce5853/mobile/android/geckoview/src/main/java/org/mozilla/geckoview/GeckoViewPrintDocumentAdapter.java#180). It seems like a race condition could be at play here.
Thanks for reporting! A few questions could help us debug: * What model is your device? * Does this happen on all pages or only certain pages? * Does it seem like it happens only if you tap through very quickly? The error is happening in the [GeckoViewPrintDocumentAdapter](https://searchfox.org/mozilla-central/rev/f9f9b422f685244dcd3f6826b70d34a496ce5853/mobile/android/geckoview/src/main/java/org/mozilla/geckoview/GeckoViewPrintDocumentAdapter.java#180). It seems like a race condition could be at play here. (Content is generated into a PDF file before printing.)