Fastmail in Sidebar

Name: Fastmail in Sidebar
Author: semanticdata

By: semanticdata

Displays Fastmail in the sidebar. Provides toggle shortcut and toolbar button.

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Install

Features & Capabilities

A Firefox Extension to display Fastmail within the Firefox sidebar. This extension adds a new section to the sidebar which contains the Fastmail web app. It also adds a shortcut, and a button toggle within the toolbar.

How to Use

Toggle the sidebar by pressing Alt+Shift+F. This shortcut can be changed by going to Add-ons -> Fastmail in Sidebar -> Options.
If you prefer buttons over shortcuts, there is a toolbar button you can press to toggle the sidebar.

How to Unlock Firefox Sidebar Width The sidebar's width is locked by default in Firefox. Unfortunately, the sidebar is very restricted and I can only do so much to enhance the functionality of this extension. I put together a step-by-step guide on how to unlock the sidebar width on my website.

Disclaimer This Add-on is primarily for personal use; a personal project if you will. I'm just trying to use Fastmail on the Firefox sidebar. This add-on just launches their webapp in the sidebar. This extension is an independent project, has no relationship, and is not affiliated to Fastmail in any way.

User Growth & Download Statistics

Add-on

By:

semanticdata

Daily users:

Version:

1.2.2 Last updated: 2024-04-26

Version code:

5734165

Creation date:

2023-03-21

Risk:

Size:

22.96KB

Email:

bo*****@fastmail.com

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-08

Compare stats and ranking:

Ranking

# 99,006 ▼ 3,240

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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:

semanticdata

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/fastmail-in-sidebar/

Email:

bo*****@fastmail.com

Website:

https://github.com/semanticdata/firefox-fastmail-in-sidebar

Is Fastmail in Sidebar 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.

Fastmail in Sidebar does not require any sensitive permissions.

Risk impact analysis details

Low This permission has no access or impact on the user's system or data, thus carrying no 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.

Fastmail in Sidebar 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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