Hi, long time user of your extension I found this morning a popup in firefox that says something like "Some extensions are unsigned and will be deactivated."

Your "Speeddial" is the only one. Are you aware of this problem ? Is there an update somewhere between you and Mozilla ?

In any case, thx for this addon till now.

I have installed the plugin on two FF's - one in a Linux Mint and one in a Windows 10. On the Linux everything is OK, but on the Windows, I can't login with Facebook and sync my bookmarks - the login pop-up window remains empty and nothing is happening.

go back one page button only works intermittently, right click and go back button has the same intermittent problem

It has the same function as just a single left click. I tend to accidentally clicking on the "Open in Tab" instead of "Open in New Tab" a few times. Any reason why does it exist?

I would like to be able to merge dials

Every time this syncs my bookmarks are duplicated. I started with 10 bookmarks. I now have thousands

Why the visual presentation is not the same in Firefox as in the other navigeteurs (chrome, opera) ?

In Firefox, 

It looks like a flat sheet, instead of looking like 3D ...