What user.agent property value should i use in gwt.xml for FF21?

Question

I want to reduce the time it takes in devmode to turn my gwt app into javascript. For that i'm thinking of limiting the user.agent values to the one corresponding to FF21. gecko1_8 is suggested to be for FF3. And gecko1_9 does not work

Answer 1

There is only one firefox user agent and is gecko1_8. It targets the gecko engine 1.8 and onwards, hence FF >= 1.5 according to this.

Have a look at here to find all the available user agents you can use.