Rated 1 out of 5 stars

The problems with installing. I am running OSX 10.7.5 and my FireFox is 19.0.1. I keep getting the message: "Not available for your platform." I the tried to install anyway and got the other message: "This add-on is not compatible with your operating system. Install for Mac Anyway." For some reason it cannot recognize my laptop. I was able to install it later on my old desktop.

This review is for a previous version of the add-on (1.1.5.1-signed.1-signed).  This user has a previous review of this add-on.

I can only think of two causes:
1) You're using a non-official Firefox build, which doesn't know its ABI or doesn't have the ABI set to "Darwin"; or
2) You've downloaded the add-on .xpi file to your computer first and are installing it from there instead of from Mozilla Addons. Whenever I release a new version, I update the maximum supported version in the install manifest to the newest release (the site does not allow omitting this or setting it for future versions). Mozilla Addons updates the compatibility automatically, but since Firefox versions come out much more often than I release updates of the add-on, if you download the file yourself it may not be up to date. If you force installation it will probably work anyway.

If neither of those is the problem, I have no idea what to suggest.