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Working offline

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I reinstalled Firefox and lost the ability to work offline. Thank you for helping out.

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How were you working offline before?

Are the menu items missing or grayed out? Either:

  • menu button > Web Developer > Work Offline
  • (menu bar) File > Work Offline

Or is the problem that Firefox does not have the pages in its cache any more, so it can't show anything without a fresh retrieval?