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FF 108.0.1 automatically downloads now, even though ASK WHERE is checked in Settings

  • 4 odpovede
  • 0 má tento problém
  • 39 zobrazení
  • Posledná odpoveď od Shane

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Windows FF 108.0.2 automatically downloads PDF files now, even though ASK WHERE is checked in Settings. I have, for YEARS, had FF set to ask me where to store any download, and it is still set that way. And whenever I opened a PDF link, FF would display the link in its PDF viewer, and if I wanted to download it, I would click the PDF viewer download button.

However, now FF automatically downloads it to disk FIRST, popping up the Downloads box showing progress, before ever displaying it on screen. What changed? This seems like a HUGE security risk.

Windows FF 108.0.2 automatically downloads PDF files now, even though ASK WHERE is checked in Settings. I have, for YEARS, had FF set to ask me where to store any download, and it is still set that way. And whenever I opened a PDF link, FF would display the link in its PDF viewer, and if I wanted to download it, I would click the PDF viewer download button. However, now FF automatically downloads it to disk FIRST, popping up the Downloads box showing progress, before ever displaying it on screen. What changed? This seems like a HUGE security risk.

Vybrané riešenie

There is an invisible reason behind these discrepancies for what happens when you've kept the Open in Firefox option.

Problem: inline vs. attachment disposition

If web servers don't specify how Firefox should handle a PDF, or if they specify "inline" handling, then then Firefox loads the PDF as web content with its original URL in the address bar. The PDFs are saved with other cached web content, not in your downloads folder. This is good.

But web servers can try to force a download by setting Content-Disposition: attachment if they don't want browsers to show the files in a tab. In this case, Firefox downloads and saves the file automatically and then opens it in a new tab. Because these are saved to disk the URLs start with file:///. By default, they are saved in your "Save files to" folder on the Settings page (you are not asked where to save files when you've selected "Open in Firefox").

Solution: Hard-to-find option for using the web content cache for all PDFs

Firefox 103 got an option to modify the above. Here's how you set it up:

(a) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button accepting the risk.

More info on about:config: Configuration Editor for Firefox. The moderators would like us to remind you that changes made through this back door aren't fully supported and aren't guaranteed to continue working in the future. I'm using this so I feel comfortable mentioning it.

(b) In the search box in the page, type or paste browser.download.open_pdf_attachments_inline and pause while the list is filtered

(c) Double-click the preference to switch the value from false to true

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Všetky odpovede (4)

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Yeah,

You need to go into Tools -> Settings -> General and set the Action for the types of downloads (Applications) to Always Ask for those types you want it to. If it's set to just Save File then it just saves it in whatever the download directory you've set is.

For me, I have Portable Document Format set to Open in Firefox then it just displays it in Firefox without saving it in my download directory that I have defined.

Hope that helps.

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Yeah, I tried that too.Yesterday, on a particular web site (IRS.GOV), and very time I clicked on a PDF link, FF opened the link, but didn't download it. I then downloaded them manually. That is the behavior I would expect (and want). However, this morning, I just clicked on PDF link from another web site, and it immediately downloaded it, then displayed it. It was a .PDF file on disk. Attached are the settings at the time. Perhaps the gremlin woke up from its nap.

UPDATE: OK, this is weird. I have ONE web site offering a download link to a PDF invoice which, when I click on it, FF automatically downloads it and THEN displays it in the built-in browser (with the sidebar pulled out). On the IRS.GOV site, when I click on one of their form links, FF displays the PDF in the built-in browser (with sidebar collapsed), but doesn't download it automatically. The link on hover on the IRS site points to a .PDF file, whereas the link on the other Invoice site shows a PDF icon with a clickable link which on hover looks to be a HTTP GET command (with a long string proceeded by a "URL\?"), not a distinct .PDF file. I can do this all day with the same behavior for each site. Is the lack of a .PDF in the URL the cause of this? FF clearly KNOWS it is a PDF since it opens its own browser to display it, and downloads it to a .PDF file. Also, checking the option labeled "Ask whether to open or save files" below the big box under "What should Firefox do with other files?" doesn't change the stated behavior either (as one might expect).

Any ideas?

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Vybrané riešenie

There is an invisible reason behind these discrepancies for what happens when you've kept the Open in Firefox option.

Problem: inline vs. attachment disposition

If web servers don't specify how Firefox should handle a PDF, or if they specify "inline" handling, then then Firefox loads the PDF as web content with its original URL in the address bar. The PDFs are saved with other cached web content, not in your downloads folder. This is good.

But web servers can try to force a download by setting Content-Disposition: attachment if they don't want browsers to show the files in a tab. In this case, Firefox downloads and saves the file automatically and then opens it in a new tab. Because these are saved to disk the URLs start with file:///. By default, they are saved in your "Save files to" folder on the Settings page (you are not asked where to save files when you've selected "Open in Firefox").

Solution: Hard-to-find option for using the web content cache for all PDFs

Firefox 103 got an option to modify the above. Here's how you set it up:

(a) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button accepting the risk.

More info on about:config: Configuration Editor for Firefox. The moderators would like us to remind you that changes made through this back door aren't fully supported and aren't guaranteed to continue working in the future. I'm using this so I feel comfortable mentioning it.

(b) In the search box in the page, type or paste browser.download.open_pdf_attachments_inline and pause while the list is filtered

(c) Double-click the preference to switch the value from false to true

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THIS ^^^ Absolutely solved the issue!

Thanks for the details and helping me understand the intricacies of what was happening. I'm sometimes too quick to blame FF for difficult issues.

Cheers mate. Shane