Filed under: Software, Tips and tricks, Internet Tools, Mods
On the Firefox 2.0 beta, extensions and compatibility
If you want to play with the Firefox betas, but don't want to break your existing extensions, there is an add-on available that can bring your existing extensions along for the 2.0 beta ride. Nightly Tester Tools is an add-on (extensions are being rebranded as 'add-ons' in the new Firefox) that brings a number of developer-related features to Firefox, but it does two fantastic things for regular end users like you and I: it can make *most* extensions/add-ons work with versions of Firefox they weren't necessarily meant to, even new ones you want to install.Long story short: the way I understand it, Firefox add-ons need to specify which version of Firefox they're compatible with, in case there is version-specific code they require to function. Most add-ons, however, don't have that version-specific code, so Nightly Tester Tools (basically speaking) futzes with add-on version lists so (ideally) more recent versions of Firefox - i.e. this shiny new 2.0 release - can use these add-ons just fine. The one catch I've personally run into is that it seems Nightly Tester Tools needs to be installed on a v1.5.x of Firefox in order to be able to work with v2.0 (ironic, isn't it?). I stumbled across this because I recently wiped my MacBook Pro and reinstalled Mac OS X (I needed to start from scratch to get that new version of Vista running on my MBP). Along with this fresh system, I tried installing Nightly Tester Tools into a Firefox 2.0 beta, and it wouldn't budge. Turns out I had to degrade to 1.5.x, install Nightly Tester Tools, then bump up to 2.0, but YMMV.
I need to give a shout out to Download Squad, as it is they who first found this add-on which makes playing with Firefox betas so much sweeter.
![TUAW [Cafepress]](http://www.blogsmithmedia.com/www.tuaw.com/media/tuaw-cafepress-promo.png)
