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Strange gap or weird space between Identity icon and URL in Firefox 30 address bar

Recently switched back to Firefox. I am happy to break away from the Big Brother dictatorship of Google Chrome and use any extension I want (not Brother-Approved Extensions).

I found a strange space between the Identity icon* and the URL text of the address bar. It was about an inch wide.
 * Usually appears as a lock, sometimes expands to show the identity name, coloring in red or green depending on validation status.

This occurs on computers with a finger print reader hardware installed.

Firefox picks up the finger print authentication plugin (which however is not used by any Firefox built-in feature, though I'm not sure about Master Password), but it sets all plugins to "Ask to Activate" by default.

This causes the fingerprint reader plugin to remain disabled at start-up, causing the weird bug.

To solve the problem in Firefox 30.0:
  1. Click Menu (three stacked bars) > Add-ons.
  2. Click Plugins on the left side of Add-ons Manager.
  3. Find the plugin related to your fingerprint reader.
    • Most likely it is "TrueSuite" or "SimplePass"
    • You can look at about:plugins to help find the exact plugin name. Look for keywords like fingerprint, finger, authentication, pass, etc.
    • For more information, check here.
  4. Choose "Always Activate" in the drop-down for the plugin. (Both "Ask to Activate" and "Never Activate" will cause the bug.)
  5. Close Add-ons Manager and restart Firefox.

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