Another add-on successfully converted: Page Zoom Button
https://addons.mozilla.org/it/firefox/a ... m-buttons/After conversion seem work fine in SeaMonkey 2.31, Debian GNU/Linux X86_64.
Also, as you can see in the add-on's page on AMO, the developer apologize for an odd behavior: "For some odd reason, this add-on currently requires an additional Firefox restart in order for the scroll zoom function (scrolling over the button) to work.
I have no idea why this is, I am looking into it, and I sincerely apologize."
Indeed after installing the add-on on Iceweasel 31.3.0 I had to restart the browser a second time in order to get the scroll zoom function available, but in SeaMonkey it wasn't necessary...
Maybe we can rename this thread as "add-on's fixer"?
Just joking.
Thank you very much, really.