Re: Retrieving a webpages shows a blank screen when a 4xx HTTP status is returned. Not helpfull.

Dave,

> Try an earlier version.

I would love to.  Do you know where I can get it ?  I quick google doesn't 
turn anything up - just posts of people having the same question. :-|

> Try removing the signing stuff.

Already done.  Otherwise my own add-on experiments wouldn't work.

> You can't convert it to a xul addon.

I was already afraid of that.  Besides the "does FF v52 actually have a HTTP 
status property I can access to begin with ?" consideration.

Regards,
Rudy Wieser