XULRunner error after upgrading to build23

[jaysonmvl]

I just upgraded from build 21 to build 23 and use Firefox to render. Now I get the attached error stating that version 8.0.1 is incpmpatible as it is expecting 10.0.2 for any page that I try to load.

If I switch back to IE9 render it does not do this however I need to use the Mozilla engine.

Thanks

[AbelAbel]

Maybe the firefox engine is broken when you update Avant. Try to reinstall it.

[anarkipw]

I updated from build 18 to 28 and I'm having the same problem. I reinstalled Firefox and Avant a lot of times and nothing changes. Downgrading to build 18 again to see if I'm still able to use it.

edit: Back on 18 and everything's ok. How do I upgrade it now?

[xiaobing]

Under what situation pop up this error message?