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

Dave Royal <[email protected]> wrote:
> On 21 Jan 2021 08:35:18 +0100 R.Wieser wrote:
>>
>>> 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. :-|
>>
> Just add /versions to the AMO url.
> 
> But the manifest looks a bit sparse to me: no ID, no Application. Try 
> adding those - check what's mandatory. Was this a Chrome Extension? Maybe 
> it never worked on Fx. 
> 
> Perhaps somebody with desktop Fx could try it - I'm on Androud here.

Well, that addon works in Fx 78.6 on Linux.
I'm surprised how much of the manifest is now optional - like ID.
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