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Firefox throws an error when opening .html files stored in other partition.

  • 6 பதிலளிப்புகள்
  • 1 இந்த பிரச்சனை உள்ளது
  • 4 views
  • Last reply by Prakhar Saxena

Firefox always gives an error whenever opening .html files stored in a partition different from where the OS is installed stating that "Access to the file was denied" as in the link below.

OS - Ubuntu 18.04 Screenshot Link - https://i.stack.imgur.com/ztBnb.png

Firefox always gives an error whenever opening .html files stored in a partition different from where the OS is installed stating that "Access to the file was denied" as in the link below. OS - Ubuntu 18.04 Screenshot Link - https://i.stack.imgur.com/ztBnb.png

All Replies (6)

Try using File > Open File ... to open saved HTML files.

If your Menu Bar, with the "File" menu is hidden, hit the Alt key to show the Menu Bar - then hit F and then hit O.

the-edmeister said

Try using File > Open File ... to open saved HTML files. If your Menu Bar, with the "File" menu is hidden, hit the Alt key to show the Menu Bar - then hit F and then hit O.

Didn't work

You may need root permission to access files on that drive.

This can also be a sandbox security issue.

You can set this pref to 2 or 1 on the about:config page to reduce the sandbox security level.

  • security.sandbox.content.level = 1
  • close and restart Firefox to make the change effective.

If this didn't work then undo/reverse the change and reset the pref via the right-click context menu to the default value.

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

See also Linux:

cor-el said

You may need root permission to access files on that drive. This can also be a sandbox security issue. You can set this pref to 2 or 1 on the about:config page to reduce the sandbox security level.
  • security.sandbox.content.level = 1
  • close and restart Firefox to make the change effective.
If this didn't work then undo/reverse the change and reset the pref via the right-click context menu to the default value. You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue. See also Linux:

Thanks, it worked. Update: It worked for the first time but when I rebooted the same problem occurred again even when the value was 1.

Prakhar Saxena மூலமாக திருத்தப்பட்டது

Hi, you may have to give it permission via the OS also.

Pkshadow said

Hi, you may have to give it permission via the OS also.


I exactly don't know how to give it permission via OS. Chrome easily accesses the file by default.