Syncing does not save all settings (alternative: Portable Firefox)

Hello, #sync #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