A HackBar for new firefox (Firefox Quantum). This addon is written in webextension and alternatives to the XUL version of original Hackbar.
Press F12 to use HackBar

HackBar - Firefox Add-on for Custom HTTP Requests
"HackBar" is a user-friendly Firefox extension specifically created for developers and security researchers. With pressing F12, HackBar opens to allow loading, splitting, and executing URLs directly from the address bar. It enables setting of custom referrers, User Agents, and cookies. This add-on includes various tools for md5, sha1, and sha256 encryption, as well as url and base64 encoding. To bolster easy data visualization, it also embodies a feature to beautify json data, along with providing SQL and XSS functionalities. HackBar empowers users to fully customize their HTTP requestesets while bearing responsibility for the executed code.
Add-on stats
Manifest V2
By: SecuriTeam
Rating: 4.16
(357)
Weekly download count: 680
Firefox on Android: No
Permissions:
- tabs
- activeTab
- webRequest
- webRequestBlocking
- <all_urls>
- storage
Size: 111.05K
Email: pe*****@gmail.com
Full description: See detailed description
Ranking
# 944 ▲ 16
User reviews
Pros
- Cool interface
- Amazing functionality
- Useful for privacy and accessibility
Cons
Most mentioned
- User-friendly
- Helpful for accessing restricted content
User reviews
by 退出党团队远离中共恶魔, 2025-02-11
by liziu1154, 2024-11-23
by Firefox user 18610014, 2024-09-25
Add-on safety
Risk impact
HackBar 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.
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Risk likelihood
We don't have sufficient data to confidently determine the risk likelihood of HackBar. Use it at your own risk.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
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