Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More
Open

"Exceptions - cookies and site data" vs "Exceptions - clear history on shutdown"

primexx

Hello,

in Firefox 154, it looks like there are 2 places if you want to create exceptions to clearing data when exiting.

1. In about:preferences#privacy under "Browsing data": "Exceptions - cookies and site data"

2. and in about:preferences#history: "Exceptions - clear history on shutdown"

The 1st place allows more than just an exception to clearing data on exit, it allows negative exceptions too (i.e. "block" and "session-only"), whereas the 2nd place does not have those, and is only an exception to clearing data on exit.

having both of those dialogues is pretty confusing and seems duplicative.

what are the under the hood differences between them, and which one should be preferred for exceptions to clearing data on exit?

Hello, in Firefox 154, it looks like there are 2 places if you want to create exceptions to clearing data when exiting. 1. In about:preferences#privacy under "Browsing data": "Exceptions - cookies and site data" 2. and in about:preferences#history: "Exceptions - clear history on shutdown" The 1st place allows more than just an exception to clearing data on exit, it allows negative exceptions too (i.e. "block" and "session-only"), whereas the 2nd place does not have those, and is only an exception to clearing data on exit. having both of those dialogues is pretty confusing and seems duplicative. what are the under the hood differences between them, and which one should be preferred for exceptions to clearing data on exit?
Attached screenshots

All Replies (1)

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.