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Hello, I have an issue with the history not being synced between my Android smartphone and my Windows PC/s.

History synchronizes just fine between my PCs (Win 10/11). Other sync functions between my phone and PC work just fine - checking the open tabs on another device, sending a tab to another device.

I am currently using 2 "sets" of Firefoxes on my devices with 2 different accounts, and the issue is present on both:

Set 1: Firefox - PC1 (Win10), PC2 (Win11), Phone (Motorola Edge 40 NEO) Set 2: Firefox Nightly - PC (Win11), Phone (Motorola Edge 40 NEO)

I already updated Firefox everywhere, logged out and in, cleared the cache & storage, restarted my phone etc.

Hello,

1. sync
2. widgets

Unfortunately, not all settings are synchronised when I sync my settings through my connected Firefox/Mozilla account.

For example, the following `about:config` preference is not saved:

`browser.newtabpage.activity-stream.widgets.system.enabled = true`

In addition, several settings from the regular Settings menu are not synchronised either, including:

- Start page settings - The custom ordering of search engines under **Search** - The option to NOT save payment methods & addresses - The option to NOT automatically trust installed certificates - secure DNS over HTTPS (DoH) activated with provider & fallback behaviour set

This is frustrating because I have to go through all the settings again after syncing. In some cases, the behaviour also seems inconsistent—for example, the checkbox for automatically trusting installed certificates does not always retain its selected state (sometimes it is unchecked[desired] and on other occasions it is checked).

Could you please investigate whether these settings are intended to be synchronised and, if so, why they are not being saved?

A reliable sync feature should reproduce the desired configuration consistently, including all stable settings—or, at a minimum, clearly document which settings are excluded from synchronisation.

Best wishes, RaphiQ

I'm not sure how long this has been happening (maybe at least a month), but my browsing history isn't syncing properly between my desktop and phone. Previously, my desktop history was syncing to my phone, but not vice-versa. Bookmarks, passwords and tabs are syncing perfectly fine. I've tried enabling/disabling sync settings and signing out and in again and now my phone history is syncing to my desktop, but my desktop history has stopped syncing to my phone. While having the full browsing history on my desktop is preferable, it would be ideal for it to show up on both my desktop and phone.

Issue description

Firefox keep self logging me out from the synchronization. This requires urgent fixing.

Expected result after fixing

Firefox should never (unconditionally) self logout the user from any devices and services (with includes synchronization

Proposed enchancement

Firefox should allow to be simously logged into services (like sync) from multiple authorized devices in same time, instead beeing selective

Can't get firefox mobile to snyc with firefox for windows. Hit sync on both devices multiple times. Also signed out abd back in on both devices to force a resync also syncable items on Android are greyed out please help.

I have toolbar bookmarks on PC with windows 11, firefox 155.0 (64-bit). and I have android phone, Samsung S26 Ultra with firefox, logged in with the same user. However, on mobile I could see a synced bookmarks which are removed long back from the desktop. I have tried to clear cache and data and re-login on mobile device firefox, still it shows the old bookmarks which were existing few weeks back. please advise