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How can I reset only Thunderbird's composer preferences to defaults?

Ettore Atalan
Ettore Atalan
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Deleting prefs.js in User profile is quite big for the problem of unable to write after a smiley. Maybe just the composer preferences are messed up due to an update or something else.

Regards, Ettore

Deleting prefs.js in User profile is quite big for the problem of unable to write after a smiley. Maybe just the composer preferences are messed up due to an update or something else. Regards, Ettore

Vald lösning

Please check to see if this being caused by an addon extension conflict. start Thunderbird in 'Safe Mode' and test.

In Thunderbird 'Help' > 'Restart with addons disabled'

If it works, then it is possible that one of your addon extensions is causing a conflict. Restart as normal 'Menu icon' > 'Add-ons' disable one at a time and restart Thunderbird. When it works ok, you will know which addon caused the problem.

Perhaps the addon needs updating.

report back on results.

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Alla svar (4)

Toad-Hall
Toad-Hall
  • Top 25 Contributor
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Vald lösning

Please check to see if this being caused by an addon extension conflict. start Thunderbird in 'Safe Mode' and test.

In Thunderbird 'Help' > 'Restart with addons disabled'

If it works, then it is possible that one of your addon extensions is causing a conflict. Restart as normal 'Menu icon' > 'Add-ons' disable one at a time and restart Thunderbird. When it works ok, you will know which addon caused the problem.

Perhaps the addon needs updating.

report back on results.

Ettore Atalan
Ettore Atalan Frågans ägare
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There are no addons installed, but the problem disappeared permanently after only one start of Thunderbird in 'Safe Mode' with addons disabled.

What was changed in 'Safe Mode'?

Toad-Hall
Toad-Hall
  • Top 25 Contributor
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Safe Mode temporarily affects the following:

  • All extensions are disabled.
  • The default theme is used, without a persona.
  • The Just-in-time (JIT) JavaScript compiler is disabled.
  • The userChrome.css and userContent.css files are ignored.
  • The default toolbar layout is used.
  • Hardware acceleration is disabled.

I would start by seeing if this is being caused by the Hardware acceleration.

'Menu icon' > 'Options' > 'Options' > 'Advanced' > 'General' tab

  • under 'Advanced configuration'
  • uncheck 'Use hardware acceleration when available'
  • click on OK

Restart Thunderbird.

Ettore Atalan
Ettore Atalan Frågans ägare
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I meant that the problem is gone also in normal mode, since I've started Thunderbird once in 'Safe Mode', but I don't know why.