Right now Imagehost Grabber is still working fine, even in Firefox latest Nightly build 44.0a1 (at least version 1.6.6 does)
I'm using the latest version from
http://imagehost-grabber.eu/imagegrabber-1.6.6.20140620.xpi
Important for the plugin to work again is to go to "
about:config" first and search for
xpinstall.signatures.required and then set it to "
false" (simply doubleclick on the value 'true')
You probably also want to change the hosts server to it's new domain.
To get there, open the Host File Editor (rightclick in a thread, choose "Imagehost Grabber" and then "Host File Editor". Towards the bottom right there is a button labelled "Modify hostf servers". Click on that. This opens a box labelled - wait for it - "Host File Servers". Click on Add Host File Server. Paste "
http://imagehost-grabber.org/hostf.xml" Click OK and you're done.
Regards,
J4ZZ