Recommend to check the Accept cookies from sites and set Accept third-party cookies to Never. As blocking all cookies which include first-party cookies would cause an error. Can’t confirm if other services like Yahoo! and other email providers would cause the same error for Mozilla Thunderbird. I do…

update: Note that blocking cookies on Thunderbird may affect email logins main ← thunderbird-cookies opened 03:56PM - 29 Aug 24 UTC (UTC) [image] …

Topic		Replies	Views
Thunderbird privacy issues Questions	8	1912	July 12, 2024
What cookies can a website access? Questions browsers	2	303	May 23, 2024
Mention how per-site exceptions affect Firefox's Total Cookie Protection Site Development approved	16	1273	August 11, 2026
Desktop browser tracking cookies criteria question Site Development approved	8	441	March 13, 2026
Firefox Enhanced Tracking Protection "Fix major site issues" option Questions please-eli5	5	908	April 23, 2026

Privacy Guides

Massive organizations are monitoring your online activities. Privacy Guides is your central privacy and security resource to protect yourself online.

Privacy Guides is a non-profit, socially motivated website that provides information for protecting your data security and privacy.

We do not make money from recommending certain products, and we do not use affiliate links.

Knowledge Base

Private Web Browsers

Top VPN Providers

Privacy-Respecting Services

Software Recommendations

More Resources

Set Accept cookies from sites and set Accept third-party cookies to Never in Mozilla Thunderbird