HTTPZ Firefox

HTTPZ

Fat-free hardenable opportunistic encryption

Features & Capabilities

HTTPZ is a fat-free, hardenable, opportunistic encryption Chrome extension designed to enhance your browsing security by automatically upgrading HTTP requests to HTTPS. Unlike other extensions, HTTPZ follows a unique "Zmart" approach: when navigating to a site over HTTP, it attempts to connect over HTTPS first and falls back to HTTP only if HTTPS is unavailable, adding insecure sites to a temporary ignore list for seven days.

This extension operates unobtrusively, respects user privacy, and includes built-in defenses against SSL-stripping attacks. It also integrates smoothly with container management extensions, supporting a safer and more controlled browsing experience. Though it does not handle sub-requests from HTTP-only sites and has minor cosmetic issues with error pages, HTTPZ remains a lightweight, configurable tool for opportunistic encryption enhancement in Chrome.

User Growth & Download Statistics

By:
claustromaniac
Daily users:
162 -2
Rating:
4.85
(39)
Version:
0.12.0 Last updated: 2019-12-11
Version code:
4922063
Creation date:
2018-12-29
Risk:
High risk impact Low risk likelihood
Permissions:
Content scripts matches:
  • *
Size:
25.46KB
URLs:
Website
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-15
Compare stats and ranking:

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:
claustromaniac
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/httpz/
Website:
https://github.com/claustromaniac/httpz/issues

User Reviews

Not working in last versions of Firefox, last update was in 2019, and not more activity on claustromaniac's github since.
by Ch*****, 2025-08-08

by 全民*****, 2025-04-08

by 远离*****, 2025-02-22
View all user reviews ›

Is HTTPZ 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.

HTTPZ 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
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.

HTTPZ 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 **** ********* *** **** **** *******
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