Webmail Ad Blocker

Name: Webmail Ad Blocker
Rating: 4.424 (250 reviews)
Author: Jason Savard

Block ads on the right side of the screen when using Gmail, Yahoo Mail, Hotmail and Outlook.com which expand your message space

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Features & Capabilities

Webmail Ad Blocker for Chrome removes right-side ads and sponsored links from major webmail providers, giving you more space to read and compose emails.

Great for parental controls to child-proof those ads and enhance focus while using email. Developed by a trusted creator of many extensions. Also available: Webmail Ad Blocker for Chrome.

User Growth & Download Statistics

Add-on Advertising Content Developer Tools

By:

Daily users:

Rating:

Version:

6.1 Last updated: 2026-07-02

Version code:

6331428

Creation date:

2008-06-12

Risk:

Permissions:

Content scripts matches:

mail.google.com
outlook.live.com
*.mail.yahoo.com

Size:

153.66KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-04

Compare stats and ranking:

Ranking

# 432

Other rankings

#8 in Social & Communication

#28 in Appearance

#1 in hotmail keyword 6

#1 in mail keyword 56

#2 in ad keyword 78

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Other platforms

Webmail Ad Blocker (v6.1)

90,000 4.53

(1,392)

Webmail Ad Blocker (v6.0)

29,003 4.20

(26)

For Developers

Monetize with App Pass Boost with Extension Booster

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:

Jason Savard

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/webmail-ad-blocker/

Website:

https://jasonsavard.com/forum/categories/webmail-ad-blocker

Permission Change History

2026-05-29: Version 5.28 → 6.0

Add Permissions: activeTab

User Reviews

Users praise effective Yahoo Mail ad blocking and the developer’s prompt updates, with broad positive sentiment and cross‑browser support. However, reliability on Yahoo Mail is mixed, with ads reappearing after changes or the extension failing at times. Some raise privacy concerns, note redundancy with other blockers, or report regional availability issues.

Pros

Effectively blocks Yahoo Mail ads when it works
Developer is responsive and pushes quick updates to fix ad-blocking
Works across browsers (Firefox and Chrome)
Very useful and positive user sentiment
Recent fixes have restored Yahoo Mail blocking after changes

Cons

Yahoo Mail blocking is not consistently reliable; ads can reappear after Yahoo changes
Some reviews report that it no longer works for Yahoo Mail
Privacy concerns about the extension potentially accessing sensitive email data
Potential redundancy if you already use another ad blocker (e.g., UBlock Origin)
Availability/download access issues in certain regions (e.g., China)

Recent reviews

(Mr. Savard sincere thanks for your update fixing the YMail Contacts issue.) Excellent extension as usual by the excellent developer!

by Se*****, 2026-03-28

I've tried multiple ad blockers to remove all the annoying ads in Yahoo Mail, and this is the only one that removes all of them. And every time Yahoo makes a change that causes the ads to reappear, the Developer quickly issues an update to the extension that removes the ads again. And he's very responsive to questions and comments! And the Chrome version works as well.

by Ch*****, 2026-01-21

by Bu*****, 2025-08-11

View all user reviews ›

Is Webmail Ad Blocker 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.

Webmail Ad Blocker requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Request access to the following domains: google.com, live.com, yahoo.com
High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
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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.

Webmail Ad Blocker has earned a good reputation and can be trusted.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
Medium **** ********* *** ****** **** ****** ********* ********** *** *** ** ****** ** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Good **** ********* ** ****** ** ********
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