1506570 - removeCookies deletes localStorage

Status: RESOLVED WONTFIX

(Firefox :: General, defect)

Description

[MarkBauer]

User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0

Steps to reproduce:

Created a Webextension that called "browser.browsingData.removeCookies({});"


Actual results:

All Cookies got removed, but so did the Local Storage.
I tested this by opening a new tab while having Tabby Cat (https://addons.mozilla.org/en-US/firefox/addon/tabby-cat-friend/) as my newtab page.

The result: All items were gone.


Expected results:

Should've deleted global Cookies, while retaining Local Storage for all pages/extensions.

Comment 1

[MarkBauer]

Note: The above Useragent is incorrect. The test results refer to 

Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0

Comment 2

[Matthias Versen [:Matti]]

This is expected see comment#6 in bug 496560
Cookies and localstorage are treat as the same to protect the users from tracking.
localstorage is for example disabled if you disable cookies.

Comment 3

[MarkBauer]

Thanks!

I've added a warning to the developer docs at https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/browsingData/removeCookies

I've already found an alternative solution that leaves localStorage intact.