Focus On Left Tab After Closing

When a current tab is closed, the left tab (or the right tab on RTL environments) will be activated.

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Focus On Left Tab After Closing is a lightweight Firefox extension designed to enhance your tab navigation experience. By default, Firefox usually shifts focus to the right or the opener tab when closing a current tab. This addon changes that behavior by automatically activating the tab to the left instead, making tab management more intuitive for many users.

For users operating in Right-to-Left (RTL) language environments, the addon smartly switches direction and focuses on the right tab after closing. Its simplicity makes it an ideal tool for users seeking seamless and efficient browsing without altering their workflow.

Add-on

By:: e10s
Daily users:: 1,187 -8
Rating:: 3.39

(28)
Version:: 1.0.1resigned1 Last updated: 2024-04-25
Version code:: 5727592
Creation date:: 2017-02-06
Risk:: Very low risk impact Moderate risk likelihood
Size:: 10.30KB
URLs:: Website
Full description:: See detailed description
Source:: Firefox Browser Add-ons
Updated:: a day ago

Ranking

# 2,772 ▼ 10

Other rankings

#267 in Tabs ▲ 1

#5 in focus keyword 19

#30 in environment keyword 15

#65 in close keyword 17 ▼ 1

#116 in tab keyword 81

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User reviews

The "Focus On Left Tab After Closing" add-on generally fulfills its core purpose and is appreciated for its simplicity and smooth transitions. However, many users face reliability issues such as inconsistent behavior after restarts, flickering during tab switching, and inability to prevent right-side tabs from loading background content. Despite these flaws, it remains popular as a replacement for discontinued features from other addons. Its limitations are partly due to Firefox's architecture, which restricts the extension's full control over tab management.

Pros

Performs the intended function of focusing on the left tab after closing the current tab.
Simple and lightweight without unnecessary permissions.
Provides a natural and smooth tab transition experience.
Welcomed as a replacement for similar features lost in other extensions like Tab Mix Plus.
Works well in many cases and Firefox versions as described by several users.

Cons

Does not work consistently or reliably, with some users reporting failure after restart or hibernate.
Sometimes briefly focuses on the right tab before switching to the left, causing flickering.
Requires uninstalling and reinstalling or disabling/enabling on restart to function properly.
Does not prevent background tabs (to the right) from loading or playing media, unlike some previous extensions.
Limited effectiveness due to Firefox's underlying tab management system which restricts full control of tab focusing behavior.

Recent reviews

Tut was es tun soll. OHNE unnötige Berechtigungen zu verlagen. Extrem gut.

by Fi*****, 2025-05-05

Yes

by Fi*****, 2025-04-27

Works good, except that I have to uninstall and reinstall each time I start/restart firefox. Make firefox OBEY customers again.

by Gh*****, 2024-12-08

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.

Focus On Left Tab After Closing 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 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.

Focus On Left Tab After Closing 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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