I have the identical software and setup without any problems.

In Firefox this may be a Security & Privacy setting. In any case delete all Google cookies and try Do you login to Google automatically and remain logged in?

Hello spittie,

Your second screenshot shows that you have not given the site permission to set cookies ....

Would you do this please :

When you're on that site, click on the 'i' in a circle, next to the padlock at the left side of the address bar.

Then click on the little black arrow on the dropdown (next to 'Connection') and then on "More Information", which will take you to "Page Info".

(well, you know how this works, looking at your screenshot)

Click on the 'Permissions" tab and scroll down to "Set Cookies". Uncheck "Use Default" and check "Allow".

Then close and restart Firefox.

Any difference ?

ineuw said

I have the identical software and setup without any problems. In Firefox this may be a Security & Privacy setting. In any case delete all Google cookies and try Do you login to Google automatically and remain logged in?

Hi ineuw, I have cleared all cookies, logged in afresh and tried but to no avail :(

Hi McCoy, Thanks for taking the time to write a detailed solution. really appreciate it!!

I did the steps you mentioned, but still getting the "unsecure connection" message (see screen shot).

isthere anything else I could try?

McCoy said

Hello spittie, Your second screenshot shows that you have not given the site permission to set cookies .... Would you do this please : When you're on that site, click on the 'i' in a circle, next to the padlock at the left side of the address bar. Then click on the little black arrow on the dropdown (next to 'Connection') and then on "More Information", which will take you to "Page Info". (well, you know how this works, looking at your screenshot) Click on the 'Permissions" tab and scroll down to "Set Cookies". Uncheck "Use Default" and check "Allow". Then close and restart Firefox. Any difference ?

SOrry I didn't quote/tag you. Please see my response above.

If you use extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) that can block content (Adblock Plus, NoScript, Disconnect, Ghostery, Privacy Badger, uBlock Origin) always make sure such extensions do not block content.

• make sure your extensions and filters are updated to the latest version
• https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems

Firefox shows the shield icon at the left end of the location/address bar in case Content Blocking is blocking content.

• click the shield icon for more details and possibly disable the protection

You can check the Web Console about what content is blocked

• "3-bar" menu button or Tools -> Web Developer
• https://support.mozilla.org/en-US/kb/content-blocking

Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem.

• switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Themes
• do NOT click the "Refresh Firefox" button on the Safe Mode start window

• https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode
• https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems

Hello again spittie,

According to your screenshots, Firefox isn't blocking any content .....

Would you please take a look at the last post in this Reddit thread and see if that will work for you :

https://www.reddit.com/r/firefox/comments/aeamte/cant_download_pdf_files_from_google_drive_using/

If everything else fails, maybe you could consider installing this add-on :

https://addons.mozilla.org/en-US/firefox/addon/google-drive-downloader/

Under "About this extension" it says :

" Please note that any supported format which you wish to download will be downloaded as a "PDF" File. "

Might be worth a try .....