LocalStorage Editor

Name: LocalStorage Editor
Rating: 4.6429 (14 reviews)
Author: igorlogius

By: igorlogius

Add, edit, copy, remove, export and import local- and session- storage data

Download

Install

Features & Capabilities

LocalStorage Editor adds a toolbar button to view and modify the localStorage and sessionStorage for the current tab. Open the storage editor to filter, search, copy, export, modify, add and import items, and to sync or discard changes as needed.

It uses permissions including storage, clipboardRead, clipboardWrite, and <all_urls> to inject a small content-script that acts as a proxy between the UI and the page storage. Quick select-all enables exporting or copying all items, while leaving items unselected helps you modify and sync only a subset.

User Growth & Download Statistics

Add-on Developer Tools Data Privacy & Security

By:

Daily users:

Rating:

Version:

1.3.33 Last updated: 2026-03-24

Version code:

6194305

Creation date:

2022-10-27

Risk:

Permissions:

Content scripts matches:

<all_urls>

Size:

133.67KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-14

Compare stats and ranking:

Ranking

# 3,710 ▼ 21

Other rankings

#15 in css editor keyword 28

#15 in editor keyword 26

#17 in text editor keyword 18 ▲ 2

#45 in store keyword 60

#81 in story keyword 31

Upgrade to see more rankings

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

igorlogius

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/localstorage-editor/

Website:

https://github.com/igorlogius/webextensions/issues/new/choose?title=localstorage-editor%20-

Permission Change History

2025-03-29: Version 1.3.17 → 1.3.20

Add Permissions: storage

2022-11-08: Version 1.2.7 → 1.2.10

Add Permissions: clipboardRead

2022-10-31: Version 1.2.4 → 1.2.7

Add Permissions: <all_urls>

Remove Permissions: activeTab

User Reviews

LocalStorage Editor is valued as an all-in-one toolkit for localStorage management, enabling users to inspect, back up, restore, and clear data. Reviewers highlight its usefulness for migrating data between domains and for testing different storage structures, as well as its overall reliable operation. The main caveats are UI complexity and occasional stability issues with large values or specific bugs (e.g., download filename date bug). Overall, it’s a helpful extension with some rough edges to refine.

Pros

All-in-one localStorage toolkit (inspect, backup, restore, and clear) for convenient management
Useful for migrating or transferring localStorage data across domains/sites
Generally reliable and works as intended across reviews

Cons

Recent reviews

by St*****, 2026-05-23

transferred all my local data when a beloved site was changing domains. thank you!

by *****, 2026-01-14

Saving large values seems to cause problems. It fails to update the key and can cause a loss of all of your local storage if the large value is the first in line to be saved. I'm guessing there is an overzealous timeout delay or something. It is handy for viewing the full value of a local storage key if it exceeds what is shown in the inspector though.

by Sa*****, 2025-12-21

View all user reviews ›

Is LocalStorage Editor Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

LocalStorage Editor requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
High ****** ******* *** ********* ********* ******** ***** *** ** ********** ****** * ******** ******* *****

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

LocalStorage Editor is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******