Why do some PDFs not load?
When trying to view some PDF documents, it appears that the PDF reader starts, quits and then displays different mesages, depending upon the site: "Cannot display PDF (Image Download cannot be opened)" or "Cannot display PDF (EnvelopePDF.aspx cannot be opened)"
- User Agent: Mozilla/5.0 (Android 9; Mobile; rv:67.0) Gecko/67.0 Firefox/67.0
So that I can look into this further, do you have an example of a link where this happens?
Unfortunately, I cannot. So far, I've only observed it when attempting to views PDFs from a secure site, lie the ones you view/download from a financial institution.
I'm using version 68.0, which I downloaded from the Google Play store.
The only thing I can think of is that the .pdf is of a type that Firefox for Android presently does not support (some .pdf files are more complex than just text or graphics). Hopefully this is something that we can support in a future update.