Web Plugin Web Plugin

Offers email tracking for popular webmail systems. This is a companion extender for our ActiveTracker plugin (download from ).

What is Web Plugin? Web Plugin is a Firefox add-on that offers email tracking, self-destructing emails, language translation, certified emails, and more. It is a companion extender for the ActiveTracker plugin and is provided by ReadNotify, the world's most trusted email tracking service.

Stats date:
Users: 62 ▼ -3
Rating: 4.00 (2)
Version: 2.91 (Last updated: 2019-05-06)
Creation date: 2015-12-17
Weekly download count: 2
Firefox on Android: No
Manifest version: 2
  • *://**
  • *://*
  • *://*
  • *://*
  • *://*
Size: 74.59K
Risk impact: High risk impact
Risk likelihood: Low risk likelihood

Other platforms

Not available on Chrome
Not available on Edge

This plugin adds new options into your email "compose" form, which lets you track your email (find out when your email gets read), as well as giving you multiple other options to choose from - including self-destructing emails, language translation (send in one language, and it comes out in a different one you choose), certified emails, the ability to delete emails after you've sent them, and more.

This is a companion extender for our ActiveTracker plugin (download from ) - which adds all those features and more, into other email programs you use (not just Firefox webmail).

ReadNotify is the worlds most trusted email tracking service, now in our 15th year of business, with millions of happy customers.

User reviews
Prior to updating my laptop recently (which included W7 to W10) ReadNotify worked well. Since the upgrade however Thunderbird refuses to add the suffix to my outgoing emails. Contact with ReadNotify has narrowed this down to Thunderbird seeming to ignore the presence of ReadNotify on my computer. Despite reinstalling Thunderbird at least twice the prompt to allow the ReadNotify add-on fails to appear and the list of add-ons in Thunderbird does not include ReadNotify or RN5 despite the software showing it as installed and active on my computer. Tracking works if I manually add to outgoing email addresses but it won't add automatically as it should. Has anybody got any suggestions?
by Tony, 2019-10-24

This is the niftiest little piece of software I have ever found! Once installed and set up you never know it's even present but it is always working for you. I send out a lot of important emails, often to people who don't even know me yet and Readnotify tells me if and when that email was opened, how many times, duration, if it was forwarded on etc.When I talk with my clients later there is no guessing whether they have received my communication. I already know the answer! Totally unobtrusive, invisible and completely reliable. Even more, it is very inexpensive and there are never any ads or promos. In six years of use I have contacted customer service twice for questions around some advanced settings and they replied within a day with an acceptable response. I have it installed on every pc in house and on my subs pcs as well.
by FireFoxFish, 2017-12-27
View all user reviews
Risk impact Web Plugin is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install Web Plugin if you trust the publisher.

Risk likelihood Web Plugin has earned a fairly good reputation and likely can be trusted.

Upgrade to see risk analysis details