Remove firefox workaround
Remove firefox workaround

- not needed anymore
- breaks chrome (same problem)

koala-framework/koala-framework,nsams/koala-framework,kaufmo/koala-framework,yacon/koala-framework,kaufmo/koala-framework,kaufmo/koala-framework,nsams/koala-framework,yacon/koala-framework,koala-framework/koala-framework,nsams/koala-framework,yacon/koala-framework