Laboratory (Content Security Policy / CSP Toolkit)

Because good website security shouldn't only be available to mad scientists! Laboratory is a WebExtension that helps you generate a Content Security Policy (CSP) header for your website.
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Laboratory is a powerful browser extension designed to help web developers generate robust Content Security Policy (CSP) headers effortlessly. By simply recording your browsing session on your website, it automatically produces a secure CSP tailored to your site’s needs. This tool simplifies the complex process of crafting effective security policies, helping protect websites from common vulnerabilities like cross-site scripting attacks.

Whether you're a beginner or an experienced developer, Laboratory equips you with essential security controls to safeguard your web content. To get the most out of Laboratory, explore the detailed video introduction by Securing DevOps that walks you through its features and best practices. Enhance your site's security with Laboratory—because good website security shouldn't be reserved for experts alone.

Manifest V2 Developer Tools Privacy & Security Productivity
By:
April King
Daily users:
2,262+ -9
Rating:
4.56
(64)
Version:
3.0.8 Last updated: 2021-01-28
Version code:
5172077
Creation date:
2017-02-24
Risk:
High risk impact Low risk likelihood
Permissions:
  • storage
  • tabs
  • webNavigation
  • webRequest
  • webRequestBlocking
  • ftp://*/*
  • http://*/*
  • https://*/*
  • ws://*/*
  • wss://*/*
Size:
408.73K
Email:
ap*****@pokeinthe.io
URLs:
Website
Full description:
See detailed description ⏷
Source:
Firefox Browser Add-ons
Updated:
a day ago

Ranking

# 1,889 ▲ 3
Other rankings
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Other platforms

Laboratory (v3.0.9)
605 5.00 (1)

User reviews

Pros
  • Saves time and headache for users dealing with CSP issues.
  • Functions well for many users without errors.
  • Great concept for enhancing security and privacy in web browsing.
Cons
  • Can cause server errors upon enabling the extension.
  • Generates spammy fake CSP reports, which can clutter the network tab.
  • Lacks support for local files (file:/// URIs).
Recent reviews
by Firefox user 18619481, 2025-04-07
by Brawl, 2025-03-23
by AA, 2024-12-30
View all user reviews ›

Extension safety

Risk impact

Laboratory (Content Security Policy / CSP Toolkit) requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
  • Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
  • High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
  • High ****** ********* ** * ****** ******** ******** ********** * ******* ******* *****
Risk likelihood

Laboratory (Content Security Policy / CSP Toolkit) has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
Upgrade to see full risk analysis details

Compare add-ons

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