Promnesia Firefox

Promnesia

Recall which pages you already visited, why and in which context
PromnesiaPromnesiaPromnesiaPromnesiaPromnesia
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Features & Capabilities

Promnesia is a browser extension (Chrome/Firefox/Firefox mobile) which provides a sidebar which complements browser history with some enhanced features.

TLDR: it lets you explore your browsing history in context: where you encountered it, in chat, on Twitter, on Reddit, or just in one of the text files on your computer. This is unlike most modern browsers, where you can only see when you visited the link.

It allows you to answer different questions about the current web page:

  • have I been here before? When?
  • why have I bookmarked it?
  • how did I get on it? Which page has led to it?
  • who sent me this link? Can I just jump to the message?
  • which links on this page have I already explored?
  • which posts from this blog page have I already read?
NOTE: to get the most benefits from the extension, you also need to set up a supplementary service. You can find the instructions here.

User Growth & Download Statistics

Manifest V3 Add-on
By:
Dima Gerasimov
Daily users:
39 1
Rating:
5.00
(9)
Version:
1.4.2 Last updated: 2026-04-08
Version code:
6212034
Creation date:
2019-06-15
Risk:
High risk impact Moderate risk likelihood
Permissions:
Host permissions:
  • file:///*
  • http://*/*
  • https://*/*
Size:
456.86KB
Email:
ka*****@gmail.com
URLs:
Website
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-16
Compare stats and ranking:

Ranking

# 17,260 ▲ 114
Other rankings
#130 in benefit keyword 10 ▲ 1

Other platforms

Chrome
Promnesia (v1.4.2)
516 5.00 (2)

For Developers

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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:
Dima Gerasimov
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/promnesia/
Email:
ka*****@gmail.com
Website:
https://github.com/karlicoss/promnesia/issues

Publisher Change History

2026-04-07: ka*****@gmail.com to ka*****@gmail.com

Upgrade to see full email

Permission Change History

2026-04-08: Version 1.3.1 → 1.4.2
Add Host permissions: file:///* http://*/* https://*/*
Remove Permissions: file:///* http://*/ https://*/
Remove Optional permissions: http://*/ https://*/
2024-06-05: Version 1.2.4 → 1.3.1
Add Permissions: scripting http://*/ https://*/
Remove Permissions: https://*/* http://*/*
Add Optional permissions: http://*/ https://*/
2023-02-10: Version 1.1.1 → 1.2.2
Add Permissions: webNavigation
Remove Permissions: tabs activeTab
2023-02-04: Version 1.2.1 → 1.1.1
Add Permissions: tabs activeTab
Remove Permissions: webNavigation
2023-01-30: Version 1.1.2 → 1.2.1
Add Permissions: webNavigation
Remove Permissions: tabs activeTab

User Reviews

by dj*****, 2024-06-09
by dj*****, 2024-06-09
by Fi*****, 2024-03-04
View all user reviews ›

Is Promnesia 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.

Promnesia 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 ****** ********* ** * ****** ******** ******** ********** * ******* ******* *****
  • Medium ******* ******* ************* ***** *** ** ******* *** **** ******* ****** ******** *******
  • Medium ****** ** ********* *** ******* ******** **** **** *********** *** ********* *** ********* ******* *** *****
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.

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

Risk likelihood analysis details
  • High This extension has recently changed publisher email (might be a transfer in ownership)
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
  • Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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