PlainSight Firefox

PlainSight

Send and receive messages hidden in plain sight.

Features & Capabilities

PlainSight is a browser extension designed to allow users to secretly communicate in plain sight. Messages are hidden using a password and are stored within a custom tag as hex. These messages can be placed anywhere on the web and those who have the extension and are using the same password have the ability to read them. If other users are using a different password, the message will become garbled when it is processed and will show up as random characters. This is NOT end to end encryption and should NOT be used to store sensitive data.

For a tutorial on how to use PlainSight, check out the README on GitHub: https://github.com/dmenear/plain-sight

User Growth & Download Statistics

Manifest V2 Add-on
By:
David Menear
Daily users:
1
Version:
1.2.0 Last updated: 2020-08-12
Version code:
5080133
Creation date:
2020-08-05
Risk:
Low risk impact Moderate risk likelihood
Permissions:
Size:
69.72KB
Email:
da*****@menear.dev
URLs:
Website
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-07-07
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:
David Menear
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/plainsight/
Email:
da*****@menear.dev
Website:
https://github.com/dmenear/plain-sight

Is PlainSight 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.

PlainSight requires very minimum permissions.

Risk impact analysis details
  • High Allows reading and modifying clipboard content, which can be sensitive, posing a moderate privacy risk.
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.

PlainSight 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.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Extension Guard
Extension Guard

Discover every extension in use, analyze risks, and enforce blocking policies with Extension Guard

Secure Your Browser
Upgrade to see full risk analysis details

Best PlainSight Alternatives

Here are some Firefox add-ons that are similar to PlainSight: