Gmail Mail Sidebar

Name: Gmail Mail Sidebar
Rating: 3.7097 (62 reviews)
Author: Baris Derin

Gmail Mail Sidebar brings Gmail right into your Firefox Sidebar.

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Gmail Mail Sidebar lets you access Gmail directly from your Firefox sidebar, enhancing your productivity by keeping your emails just a click away. This handy helper tool integrates seamlessly into your browsing experience, allowing you to check your inbox without leaving your current tab. Please note, Gmail Mail Sidebar is not officially affiliated with Gmail or Google Inc., and Gmail is a registered trademark of Google Inc.

Add-on Productivity Communication

By:

Daily users:

Rating:

Version:

63.1resigned1 Last updated: 2024-04-25

Version code:

5726703

Creation date:

2016-03-24

Risk:

Permissions:

contextualIdentities
cookies
tabs
webRequest
webRequestBlocking
contextMenus
storage
<all_urls>

Size:

267.28KB

Full description:

Source:

Firefox Browser Add-ons

Data ingested on:

2025-07-10

Ranking

# 3,003 ▲ 17

Other rankings

#176 in Feeds, News & Blogging ▼ 2

#366 in Social & Communication ▼ 2

#2 in mail keyword 34

#4 in deepseek sidebar keyword 45

#6 in gmail keyword 56

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User reviews

Users find the Gmail Mail Sidebar add-on to be simple and quick for managing emails, particularly for checking incoming messages. However, many experience significant issues such as 400 errors, failure to open email content, and getting stuck on the login page. The add-on only supports Gmail's basic HTML view and includes large advertisements, which frustrate users.

Pros

Simple and quick to check, send, reply, and delete emails.
Useful for checking incoming emails.
Clean and curated interface.

Cons

Frequently shows a 400 error with 'URL not found on this server'.
Fails to open or display email content after clicking.
Stuck on the login page sometimes and stops working properly.
Uses the basic HTML version of Gmail only.
Includes a large advertisement banner upon installation.

Recent reviews

by 81*****, 2025-06-17

by 敬念*****, 2025-03-26

by 敬念*****, 2025-02-11

View all user reviews ›

Extension safety

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.

Gmail Mail Sidebar 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 Browser Add-ons, 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.

Gmail Mail Sidebar has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******

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