Firefox and FindMyPast


I've been using FH for some time now and in general the software very much.  I regularly use the Internet Link to FindMyPast and MyHeritage with no problems.  In the last couple of days though when I select the FMP hints buttons I have a problem and get an error page.  Ineed help on how to fix it please.  I use Firefox as my webbrowser.

When I select the FMP hints buttons get:

statusCode":400,"error":"Bad Request","message":"Invalid cookie header 

when I expand on this I get:

Response Headers

X-Firefox-Spdy: h2

cache-control: no-cache

content-type: application/json; charset=utf-8

date: Fri, 29 Oct 2021 15:59:25 GMT

server: istio-envoy

vary: accept-encoding

x-content-encoding-over-network: gzip

x-envoy-upstream-service-time: 8

x-request-id: 07983ae9-dc26-418c-a4ae-e4517516512e

Request Headers

Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8

Accept-Encoding: gzip, deflate, br

Accept-Language: en-GB,en;q=0.5

Connection: keep-alive


Sec-Fetch-Dest: document

Sec-Fetch-Mode: navigate

Sec-Fetch-Site: none

Sec-Fetch-User: ?1

Upgrade-Insecure-Requests: 1

User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:93.0) Gecko/20100101 Firefox/93.0

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