The tabs don't regularly sync between the desktop and Android browsers. I can manually hit the "Sync now" button on either end, and the latest tabs open don't change. Specifically I can't sync tabs opened on the Android browser to the Windows desktop browser. Clicking the button on the desktop browser does something, it switches to "Synching" with a loading throbber, but the tabs don't appear below in the list. Doing it on the android browser does nothing, it still reads "Last Synced 12 Hours Ago" on my android browser, and this is generally the number it says, more or less, whenever I attempt this. I've tried updating the browser on both devices, and force stopping it on the android device and restarting it based on community recommendations, then reattempting to sync, and neither helped. Other options suggested copying sessionstore.jsonlz4 from the profile folder on one device to the profile folder on the other device to transfer the open tabs (https://support.mozilla.org/en-US/questions/1404630), but the guidance to do that doesn't work on Android, as it lacks the menus referred to in those guides. I don't know how to access the session data on Android, nor could I find a guide for it.