Build number not displayed

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Normally when you invoke the About Thunderbird window, information about the current version and build is displayed. However, if you have installed the Mnenhy add-on, the correct build text may not be displayed.

  1. At the top of the Thunderbird window, click the Tools menu (Alt + T) and select Options…OptionsIn the menu bar, click the Thunderbird menu and select PreferencesAt the top of the Thunderbird window, click the Edit menu and select Preferences, or click the Application menu button New Fx Menu and choose Options…OptionsPreferences.
  2. On the Advanced panel, select the General tab.
  3. Click the Config Editor button. Clear any warning message that is displayed.
  4. Enter useragent in the search box.
  5. Click on the preference called general.useragent.override (which should be displayed in bold text).
  6. Right-clickHold down the Ctrl key while you click the preference and select Reset.

The About Thunderbird window should now show the correct value.

These fine people helped write this article: Chris Ilias, Tonnes, vesper, Michael Buluma. You can help too - find out how.