Features & Capabilities

Sidetabs is a powerful Chrome extension that introduces vertical tabs to Firefox, a feature the browser never had natively. Designed as a seamless drop-in replacement for Firefox's default horizontal tabs, Sidetabs allows users to view all open tabs vertically, optimizing screen space and making it easier to find the desired tab among many. Supporting custom browser themes, the extension retains a familiar look and feel.

Beyond just vertical orientation, Sidetabs offers customization options enabling users to tailor the appearance and behavior of their tabs according to their workflow. It also provides a guided modification to the userChrome.css file, unlocking advanced features such as autohiding tabs, removing the sidebar title, and hiding default tabs for a cleaner interface. Sidetabs is the ideal solution for those overwhelmed by numerous open tabs, seeking better organization and productivity in their browsing experience.

User Growth & Download Statistics

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:
Jeb Nicholson
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/sidetabs/
Website:
https://github.com/jeb5/SideTabs/

Permission Change History

2023-11-05: Version 0.42 → 0.50
Remove Optional permissions: <all_urls>

User Reviews

one of the greatest ff extensions ever to grace us (occasionally disgruntled) netscape navigators with its presence; a cardinal sin, it is, that only 204 (as of yet) netizens have been able to enrich their radical surfer lifestyle with this incredibly intuitive and impeccably interfaced instrument for idyllic internet traversal.
by il*****, 2025-07-31

A good attempt at this sorely needed feature set, but not quite there. I was particularly excited about the Slim bar with hover, but unfortunately this feature simply does not work properly; though the content in the side bar does indeed extend, the bar itself does not, rendering this feature unusable. Another big issue is the inability to drag tabs out into new windows, or onto other existing windows, another feature I was depending on. For these reasons, I cannot recommend this add-on in it's current state, but I am hopeful it will be fit for purpose in the future.
by Fi*****, 2025-01-20

by Fi*****, 2024-10-30
View all user reviews ›

Is Sidetabs 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.

Sidetabs requires a few sensitive permissions. 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.
  • Medium ****** ** ********* *** ******* ******** **** **** *********** *** ********* *** ********* ******* *** *****
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.

Sidetabs 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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