The addon is completely broken (and has been so for years now!). The iCloud app acts like it's not installed when attempting to use it to sync bookmarks, even though it's installed and enabled. Fix your software, Apple!

Cannot get it to work. iCloud keeps stating to download extension, while Firefox states it is installed and active.

does not work if you enable icloud end 2 end encryption. as does the windows icloud app. fix these it has been 6 months

No funciona en la v111.0.1 (64-bit) de Firefox

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.

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...