What Extensions specifically because if they were compatible with Fx 11.0 then they are likely compatible with 14.0.1 unless there is a reason like binary or something version specific.

If they are being hosted on addons.mozilla.org then look to bottom of each page for the Extension as there is a Version Information section and click on See complete version history to see what Firefox versions the latest version of extension are compatible with.

Themes are much more version specific and Plugins are not really so version specific.

You can check this page if you are using add-ons available from AMO - addons.mozilla.org . It is now showing compatibility for the upcoming Firefox 15.0 version - due to be released on 08-27.

https://addons.mozilla.org/en-US/firefox/compatibility/15.0

And you can change the version of Firefox in the App: drop menu to say Firefox 14.0

@James and @the-edmeister Thanks for your replies! But I don't think you have to manually check whether the add ons are compatible with firefox 14.0 or not, firefox itself notifies us with a warning while updating. What I want is that firefox should notify me to update only when all add ons are compatible. I don't want to manually check for it every now and then.

I am curious to know if there is any add on or something that automatically lets you know when the existing (installed) add ons become compatible with the latest version of firefox. That kind of automation would be cool!

You can install this extension to see the current compatibility info on the about:addons page.

• https://addons.mozilla.org/en-US/firefox/addon/is-it-compatible/