I have lots of Firefox add-ons. cookie exceptions etc. which would take a long time to set up in Icedragon.

I always update Firefox on my spare computer by using Mozbackup which transfers them all.

Is there any way to do this for Icedragon?

Try the FEBE extension.

Thanks for that Neil. It looks interesting but I fave uninstalled Icedragon as it changed my home page back to Yahoo which I don’t like, so I am staying with Firefox and Mozbackup which I have used for years now with no problems.