User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:56.0) Gecko/20100101 Firefox/56.0 Build ID: 20170926190823 Steps to reproduce: 1. Browse my eBook purchases at humblebundle.com in Firefox for iOS; 2. Try to download one of the eBooks as ePub; Tested using iOS 10.3.3 and Firefox for iOS 9.2. Actual results: Firefox shows this message: "Firefox is unable to download or display this file. Would you like to open it in another app?" However, iBooks does not appear among the candidate apps. Expected results: Somehow allow me to open the ePub in iBooks. This is possible in Safari for iOS and in Google Chrome for iOS. So it seems to be an oversight from the Firefox for iOS team.
Changes made here - https://github.com/mozilla-mobile/firefox-ios/pull/3402/files Url used for testing the loading of PDF and EPUB - https://pressbooks.com/sample-books/
Comment on attachment 8923663 [details] [review] Pull request Re-assigning this review to :farhan since he already has been commenting back and forth on the PR.
Comment on attachment 8923663 [details] [review] Pull request kesun please feel free to request review once you are ready :)