Block Sender for Gmail

Name: Block Sender for Gmail
Rating: 2.7778 (9 reviews)
Author: Block Sender

By: Block Sender

Block annoying emails in Gmail. Say goodbye to unwanted newsletters, individuals, and other uninvited email senders.

Download

Install

Features & Capabilities

"Makes this process very easy and will prevent you from getting inundated with pointless emails" - Business Insider

"Pure simple, it's genius!" - Karl H.

"A nice power-up for Gmail." - Takemura Y.

Do you get annoying email?

With Block Sender for Gmail, you can block any email permanently in one click and send a fake Error message. No more complicated filters to setup in Gmail. Works for email addresses, domains, subject lines and even keywords. Block anyone.

POPULAR USES:

Block someone from harassing you with unwanted email. Send them a fake "This email address is incorrect" error message.
Block any newsletter you didn't subscribe for and never see it again.
Social networks or shopping sites sending you email you don't want to read? Block it in one click.

FEATURES:

Adds a "Block" button into Gmail. When you get a message you don't want, block the sender permanently.
Automatically create a fake "This email address doesn't exist" error message to appear in the other person's inbox.
Anonymous: The sender won't know that any message you get goes to your trash immediately.
Flexible: Undo accidental blocks.
Freedom: Permanently delete messages or have them skip the inbox.
Advanced Filtering: Block sub-domains, subjects, or even individuals with an upgrade.
Insightful: Flag future messages from the same domain.

AND MANY MORE USES:

Getting a lot of notification messages from Facebook, Twitter, or social media services you signed up for? Block them all.
Set up simple filters without having to worry about the cumbersome options.
Fake your email death for those people you really don't want to talk to. Ever. Again.
Relationship ended horribly? Never see another message from your ex again.
Can't block a particular address? Flag all messages from certain domain names.

WORKS WITH:

Gmail™
Google Apps Email

HELP: About: https://blocksender.io Support: http://help.blocksender.io Contact: support (at) blocksender.io Bugs: support (at) blocksender.io

PLANS & PRICING: Block Sender has a free plan, a plus plan, and a pro plan. It is free to use Block Sender up to a limited number of blocks every month. Unlock more blocks by upgrading to our monthly or yearly plans. More information at: https://blocksender.io

CHANGE LOG:

4.x release: Update to add Block Sender account management.
Initial release. Supports blocking of individual messages.

User Growth & Download Statistics

Add-on

By:

Daily users:

Rating:

Version:

4.5.1 Last updated: 2020-12-22

Version code:

5154325

Creation date:

2014-06-02

Risk:

Permissions:

*://*.blocksender.io/*
https://mail.google.com/*
tabs
storage
webRequest
webRequestBlocking
notifications
alarms

Content scripts matches:

mail.google.com

Size:

2.46MB

Email:

su*****@blocksender.io

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-03

Compare stats and ranking:

Ranking

# 7,233 ▲ 82

Other rankings

#144 in wa sender keyword 27 ▲ 1#149 in gmail keyword 65 ▲ 1

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:

Block Sender

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/block-sender-for-gmail/

Email:

su*****@blocksender.io

Website:

http://help.blocksender.io

User Reviews

It doesn't work! I tried to create a new block and the emails keep coming trough! Plus, the canned response doesn't work. Any idea how to fix this?

by Fi*****, 2025-12-01

by 远离*****, 2025-03-23

by 退出*****, 2025-02-24

View all user reviews ›

Is Block Sender for Gmail 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.

Block Sender for Gmail 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.
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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.

Block Sender for Gmail 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.
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