We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

window.addEventListener('storage' ...) not Firing When "Clear Data" Button Used from "Settings | Privacy and Security"

In JavaScript I did addEventListener('storage', ...), and it's working fine as long as I use localStorage.setItem(), .removeItem(), or .clear(). However, when I use the "Clear Data..." button under "Settings | Privacy and Security" it seems the event does not fire. I noticed that in Chrome the corresponding settings option to clear all data does fire the storage listener, and this is the behavior I'm looking for.

Thanks.

In JavaScript I did addEventListener('storage', ...), and it's working fine as long as I use localStorage.setItem(), .removeItem(), or .clear(). However, when I use the "Clear Data..." button under "Settings | Privacy and Security" it seems the event does not fire. I noticed that in Chrome the corresponding settings option to clear all data does fire the storage listener, and this is the behavior I'm looking for. Thanks.

All Replies (1)

You want your web app to be able to detect that the user deleted data from Local Storage via browser features? I don't know whether the events are intended to fire in that case; maybe not. You could search Bugzilla or submit a new bug.

https://bugzilla.mozilla.org/