webgui: fix firefox problem in batch mode
webgui: fix firefox problem in batch mode

One requires temporary profile for firefox.
To create it, one should run firefox -CreateProfile.
When doing this in batch, one also should specify -headless
olifre/root,karies/root,root-mirror/root,root-mirror/root,root-mirror/root,olifre/root,olifre/root,olifre/root,karies/root,karies/root,olifre/root,karies/root,karies/root,karies/root,root-mirror/root,root-mirror/root,root-mirror/root,karies/root,olifre/root,olifre/root,olifre/root,root-mirror/root,karies/root,karies/root,olifre/root,karies/root,olifre/root,karies/root,root-mirror/root,root-mirror/root,olifre/root,root-mirror/root,root-mirror/root