I don't know if you are on a Mac, but you could check out Orion, based on webkit but built in support for Chrome and Firefox-extensions:
https://news.ycombinator.com/item?id=28799049
I just tested this, and even tho i didn't got it to work on my project (Linker-errors) it was exceptional on the test app.
This is very innovative and fresh, and makes it so easy. Kudos to you guys. I'm gonna do some testing, and maybe i'll try this out in our beta rounds.
A question tho: It seems like you hijack all UI-elements and subclass them on runtime. (Or something. Swizzling?)
How is this in regard to speed and performance?
I am really left feeling like i have gone to deep into the forest when stacks just keep piling up.
Even if i press "Home" in the menu, it just ends up being another page added to the stack.
It really feels like i've made a mess using this app. I can't take mess. And it takes some time to clean it up.
Why do you do this? It must be some memory concerns to this as well?