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Firefox Headless ---Screenshot not working for local HTML files

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  • Dernière réponse par cor-el

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I'm unable to generate a screenshot of a local HTML file using Firefox's (v60.9.0) [headless mode][1]

Here's the command I'm using:

   "C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -P AJ --screenshot test.png "file:///C:/html_export.html"

I've tried with and without a profile and with different numbers of slashes after file. There are no errors in the command line - it just doesn't generate an output.

This command works fine when I substitute the file:// with an external website like:

   "C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -P AJ --screenshot test.png google.com

Could it be related to the [redirect bug mentioned here][2]?

Any help is appreciated! Perhaps theres a way to turn on output verbosity for --headless mode?

 [1]: https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Headless_mode
 [2]: https://bugzilla.mozilla.org/show_bug.cgi?id=1546062

All Replies (1)

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This could be related to this pref:

  • privacy.file_unique_origin = false

See also this thread for some remarks when I tested headless mode:

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