Device info: - Redmi Note 8 Pro - Android 9 PPR1.180610.011 Firefox Browser info: - 82.1.1 (Build #2015770923) (latest available on Google Play Store at the time of writing) Reproduction scenario: - Find any website with a link to a PDF file - Click on the link; the download starts and download icon appears in notification area - The download continues for several minutes (even for ~60KB file on ~20Mbit link) - After several minutes a 'download failed' notification appears - No downloaded files are present in Firefox downloads folder The same download works fine when external download manager is selected. Firefox has all necessary privileges enabled (i.e. access to device memory). This seems to be a bug already reported in August: https://support.mozilla.org/en-US/questions/1297466 However the thread was closed by moderator AliceWyman, since OPs problem was solved (oh, wait - actually a question is marked as chosen solution... huh?). It is nice that you stick so close to Mozilla Support guidelines and props to you for 'solving' another issue, but wouldn't it be nicer to... I don't know... move the discussion to a separate issue and honestly look into it (since there clearly is a problem) instead of axing the thread? Show a little commitment to users? It's common courtesy in many opensource projects, nothing out of the ordinary...