Can't access https://accounts.firefox.com/ or use sync

[Keenly5490]

🟥 https://github.com/arkenfox/user.js/wiki/5.2-Troubleshooting

• I have read the troubleshooting guide, done the checks and confirmed this is caused by arkenfox
  • unchecked issues may will be closed as invalid

🟪 REQUIRED INFO

• Browser version & OS: Firefox 109.0 Windows 11
• Steps to Reproduce (STR): Setup Arkenfox
• Expected result: Being able to access Firefox account
• Actual result: Error 500 page
• Console errors and warnings: N/A
• Anything else you deem worth mentioning: Does not occur with clean Firefox profile

---

// my overrides
/* override recipe: enable session restore **/
user_pref("browser.startup.page", 3); // 0102
// user_pref("browser.privatebrowsing.autostart", false); // 0110 required if you had it set as true
// user_pref("browser.sessionstore.privacy_level", 0); // 1003 optional to restore cookies/formdata
user_pref("privacy.clearOnShutdown.history", false); // 2811
// user_pref("privacy.cpd.history", false); // 2820 optional to match when you use Ctrl-Shift-Del/ override recipe: enable session restore ***/
user_pref("browser.startup.page", 3); // 0102
// user_pref("browser.privatebrowsing.autostart", false); // 0110 required if you had it set as true
// user_pref("browser.sessionstore.privacy_level", 0); // 1003 optional to restore cookies/formdata
user_pref("privacy.clearOnShutdown.history", false); // 2811
// user_pref("privacy.cpd.history", false); // 2820 optional to match when you use Ctrl-Shift-Del
user_pref("keyword.enabled", true); // 0801: enabled urlbar search
user_pref("signon.rememberSignons", false); // 5003: disable saving passwords