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

Prakhar Saxena
Prakhar Saxena
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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

Toutes les réponses (6)

the-edmeister
the-edmeister
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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.

Prakhar Saxena
Prakhar Saxena Auteur de la question
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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

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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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:

Prakhar Saxena
Prakhar Saxena Auteur de la question
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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.

Modifié le par Prakhar Saxena

Shadow110
Shadow110
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Hi, you may have to give it permission via the OS also.

Prakhar Saxena
Prakhar Saxena Auteur de la question
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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.