This add-on for Firefox has been broken for years now. For a company with a reputation for high levels of QA, they sure suck bad when they suck.

Non funziona

同步不完全、重复书签、无法排序。。。和win版的iTunes一样，totally crap.

Waardeloos! Als je in iCloud aangeeft Firefox te willen gebruiken geeft iCloud een melding dat je eerst de Add-On moet downloaden, terwijl deze al is gedownload en is ingeschakeld in Firefox. Systeem blijft dan hangen, hoe vaak je het ook probeert.

Can't get this extension to work with iCloud (keeps telling me to download extension, which I did and installed, but endless loop telling me to download).

Made specifically not to work. Duplicates bookmarks, deletes them, changes order of icons etc... Jails you inside Apple ecosystem and Safari.

Not work!

This addon not only doesn't work, but it also clobbered my bookmarks toolbar. Should be removed since they don't seem to care enough to fix it.

Nefunguje!
Windows iCloud appka stále chce aby sa rozšírenie nainštalovalo aj keď je nainštalované a teda sa v ňom tvári, že je synchronizácia vypnutá. Synchronizácia však funguje, ale otrasne.
Prehadzuje mi poradie záložiek, často mi odstraňuje záložky...

Doesn't work!
Windows iCloud app always asks me to install this addon even though it's already installed and in iCloud app it says that the synchronization is disabled. But the synchronization is enabled, but it's awful.
It shuffles my bookmarks and deletes some of them from time to time...

can't work on windows11

I install it, it prompts me to download icloud for windows... which I already have. I've uninstalled, reinstalled, changed settings, and nothing works. This is no good at all - it doesn't even deserve the 1-star rating.

Maddeningly bad, constantly stops working. In fact, I've never gotten it to work for more than a month without it losing connection. Then I'll have to spend an hour trying to reconnect over and over, pulling out my hair while all of the Apple instructions don't work at all. Then, randomly, it will reconnect and I will get it to sync for a few days.
Lame.

Used to work, after a fashion. Now, under Windows 11, it doesn't do anything at all.