Who should use Focus On Left Tab After Closing?

Focus On Left Tab After Closing is an open-source project built for firefox users who want customized tab-closing behavior.

What platforms does Focus On Left Tab After Closing run on?

Focus On Left Tab After Closing runs on the web and embeddable surfaces.

Is Focus On Left Tab After Closing still active?

Unverified. Focus On Left Tab After Closing has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

Who makes Focus On Left Tab After Closing?

Focus On Left Tab After Closing is developed by e10s.

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Focus On Left Tab After Closing

Name: Focus On Left Tab After Closing
Author: e10s

github.comBrowser DevTools & extensions

Focus On Left Tab After Closing is an open-source Firefox WebExtension that changes tab-closing behavior so the tab to the left receives focus. It is intended for Firefox users who prefer this navigation pattern.

Open SourceWebEmbeddable

Visit github.com

Overview

3 features

Focus On Left Tab After Closing is a Browser DevTools & extensions project. It focuses on keeping tab navigation predictable by selecting the left tab after closing the current tab. Focus On Left Tab After Closing is an open-source project aimed at firefox users who want customized tab-closing behavior. Focus On Left Tab After Closing is open source under the Open Source license. It ships for the web and embeddable surfaces.

Behind Focus On Left Tab After Closing is e10s. Key capabilities include left-tab focus, tab closing behavior, and Firefox WebExtension.

Summary written by a language model from the project’s public pages.

Left-tab focus
Tab closing behavior
Firefox WebExtension

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

License

Open Source

Verified signals

HTTPSPrivacy Policy Terms of ServiceOpen SourceFree tierStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed8 Sept · 23:14 UTC
Focus On Left Tab After Closing verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Focus On Left Tab After Closing

What is Focus On Left Tab After Closing?: Focus On Left Tab After Closing focuses on keeping tab navigation predictable by selecting the left tab after closing the current tab. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use Focus On Left Tab After Closing?: Focus On Left Tab After Closing is an open-source project built for firefox users who want customized tab-closing behavior.
Is Focus On Left Tab After Closing free?: Yes — Focus On Left Tab After Closing is open source under the Open Source license and free to use.
What platforms does Focus On Left Tab After Closing run on?: Focus On Left Tab After Closing runs on the web and embeddable surfaces.
Is Focus On Left Tab After Closing still active?: Unverified. Focus On Left Tab After Closing has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
Who makes Focus On Left Tab After Closing?: Focus On Left Tab After Closing is developed by e10s.
Is Focus On Left Tab After Closing open source?: Yes — Focus On Left Tab After Closing is open source under the Open Source license.

At a glance

Pricing: Open Source
Platforms: Web
Languages: English
License: Open Source
First seen: 8 Sept 2026
Built for: Firefox users who want customized tab-closing behavior
Model: Open source
Solves: Keeping tab navigation predictable by selecting the left tab after closing the current tab.

Registered as

Firefox Add-ons: focus-on-left-tab-aft-closing

Developer

e10s

Index record

Indexed: 8 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 8 Sept 2026

Identity audit (13)

Slug: focus-on-left-tab-after-closing-github-com
Lifecycle state recorded: 8 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 8 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 8 Sept 2026
Canonical URL: https://github.com/e10s/focus-on-left-tab-after-closing

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