Sometimes when you install plugins in development like SmoothWheel in Firefox 3 beta x, you get the error message as “plugin does not provide secure updates. The plugin will not be installed”, this is quite annoying as SmoothWheel has full compatibility for firefox 3.x.
Here is a way to get around this problem
Open your Firefox 3.x
- Type
about:configinto Firefox’s address bar and click the “I’ll be careful, I promise!” button. - Make a boolean pair called
extensions.checkUpdateSecurityand set the value to false. - Restart Firefox.

thats all. all the updates that gave the above error should work fine now.
and please don’t click the enable button in the addons list (shown above), or else you have to repeat this all over again.
Please Note: This should be used only when necessary as this will remove the plugin security check, therefore proceed carefully.



[...] For Firefox 3x users, please see this post on how to install [...]
[...] use certain vital extensions like the Web Developer toolbar and User Agent Switcher, read this useful post and then restart Firefox to fix the “plugin does not provide secure updates” message. [...]
I added this and it set the type to string. I can’t find a way to change it to boolean. Is there a way to fix it?
well, reset the value and restart your browser. firefox will automatically remove this new value….
Can you undo this after you’ve done it?
yes of course, why not. right click on the added entry and press reset and restart Firefox
I created the boolean, but accidentally set it to true. Tried to switch it to false, but then it turned “extensions.checkUpdateSecurity” into a string, not a boolean and I still can’t install the extension. Help please!
Nevermind, thanks theWizard
!
you are welcome EragonS, when a similar situation happens, just reset the newly added value and restart FF and it would be gone. Sorry for the late reply.
I created the entry, but by mistake instead of creating a binary one, I created a string based entry. Now, I cannot delete it or change it to binary. Do you know how to do that? Thanks in advance.
@ Abhi
yes of course, why not. right click on the added entry and select reset and restart Firefox. The entry would have gone.
Then create an entry according to the article
Excellent! Godd news. I hope more people hear about this
Firefox 3 trick to fix Error Message ‘plugin does not provide secure updates. The plugin will not be installed’…
Sometimes I tried to install plugins in development in Firefox 3 beta x, I got the error message “plugin does not provide secure updates. The plugin will not be installed”. Here I’ve found the way to avoid this bug. Good luck with new Firefox…
I totally agree, great post!
Keep up the good work.
Grtz, Bob
Changing the setting was no problem, but the “Allow Right-Click” extension still won’t load, and still shows the same error. Any ideas?
well, the browser is breaking the extension, either get rid of it or downgrade the browser. This is just a hunch, maybe another extension is causing some problems with this extension, in that case disable all other extensions and themes and try enabling one extension at a time.
I totally agree, great post!
Keep up the good work.
Grtz, ezgi
it works! only problem is that i have a grayed out options button in the addons menu.
http://img25.imageshack.us/my.php?image=capturewv9.jpg
i think that won’t work using the above fix. You may have to find another compatible plugin
[...] 1. http://dotnetwizard.net/soft-apps/firefox-fix-error-message-%E2%80%98plugin-does-not-provide-secure-... [...]