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There's an "updated.app" laying in Firefox package. Since firefox won't start and "updated.app" will, is it safe to replace firefox package with it?

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After last update to last version, FF was running fine before a hardware restart. Since then it won't start and profile manager either. No error message pops up and console window doesn't trace any event. firefox package contents an "updated" package likely created by last update. Will i loose my settings or run into any kind of problem by replacing firefox's package with the so called "updated" one?

After last update to last version, FF was running fine before a hardware restart. Since then it won't start and profile manager either. No error message pops up and console window doesn't trace any event. firefox package contents an "updated" package likely created by last update. Will i loose my settings or run into any kind of problem by replacing firefox's package with the so called "updated" one?

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The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

  1. Go to Firefox > Help > Troubleshooting Information.
  2. Click the "Reset Firefox" button.
  3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
  4. Firefox will open with all factory defaults applied.


Further information can be found in the Refresh Firefox - reset add-ons and settings article.

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