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How To Disable ‘will not be installed because it does not provide secure updates’ Warning in Firefox 3

Nate Weiner - Posted in What I've Learned, Comments (12)

By default, Firefox 3 prevents users from installing any extensions that do not offer a secure connection for automatic updates.  This prevents users from being victims of hijacked update URLs.

But for developers or people installing extensions they know they can trust, it is a pain.

Luckily it is easily disabled by:

  1. Enter ‘about:config’ into address bar, hit go
  2. Right click somewhere in the list of keys below.  Select New->Boolean
  3. Enter ‘  extensions.checkUpdateSecurity ‘ as the name
  4. Select false as the value
  5. Reattempt installation of your plugin.

Ran into this problem when installing Extension Developer’s Extension while working on Read It Later.

Found the solution at MozillaZine (via Google)

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Comments (12)


  1. I added a String key at first, but by re-adding the same key as a Boolean and restarting a few times (in some random order) I got it to work :).

    April 10th, 2008 Simon B.

  2. thanks for this post - i was trying to install cocomment, and i was getting that lovely message. your fix worked perfectly. :)

    April 30th, 2008 lindsay

  3. thank you, i will try it that way! hope it works fine!!!

    greetings!

    May 4th, 2008 raphael

  4. [...] a solution exists over at Idea Shower. Add a new boolean key using about:config and restart. Easy-peasy. More [...]

    July 21st, 2008 Joel Mama’s Blog » Firefox extension error “… does not provide secure updates”

  5. Absoultely cound not get this to work for me. Tried it several times restarted several times, still got the same error.

    August 14th, 2008 fizz

  6. me to, the same problem

    September 3rd, 2008 Urheber

  7. Thanks, I use Firefox allot and this will be useful. I have had trouble loading plug-ins.

    September 28th, 2008 tommy

  8. Thanks for this, worked perfectly!

    It does look like there are some extra (?) spaces around “extensions.checkUpdateSecurity”, perhaps that’s why this didn’t work for some people? I added it without the spaces, and it works fine for me.

    November 24th, 2008 Ralst

  9. i m using firefox 3.0.5, so the extensions is not compatibility

    January 27th, 2009 Nimo

  10. Thanks u ! now i can fix “ImageShack right-click” will not be installed because it does not provide secure updates =))

    June 22nd, 2009 Tha`nh

  11. Thanks… it’s work…

    November 15th, 2009 Takien

  12. Thank you! Trying to develop a FF 3.5.7 and none of the tutorials work until you enter that setting.

    January 15th, 2010 Ronan O'Driscoll

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