Extension Fixes Sitemap

This Extension Was Turned Off Because It Is No Longer Supported

Chrome shows "This extension was turned off because it is no longer supported" when an extension has been automatically disabled. This happens when the extension uses deprecated APIs, was removed from the Web Store, or violates current Chrome policies. You generally cannot re-enable it — check the Chrome Web Store for an MV3 update or find a maintained alternative.

Last reviewed: 2026-05-22

Fix "This Extension Is No Longer Supported" in Chrome

Chrome shows "This extension is no longer supported" when an extension uses outdated APIs, was removed from the Web Store, or is incompatible with your Chrome version. Recommended approach: find a maintained replacement from the Chrome Web Store. Avoid downloading old copies from unofficial sources.

Last reviewed: 2026-05-13

Manifest V2 Disabled in Chrome: What You Can Do

Chrome disabled Manifest V2 extensions starting with Chrome 138. This affects extensions not updated to Manifest V3. If your extensions stopped working, look for MV3-compatible replacements, check for official updates from developers, or consider using Firefox which still supports MV2 extensions.

Last reviewed: 2026-05-21

Chrome Disabled My Extension: Causes and Safe Fixes

Chrome disables extensions for various reasons: deprecated APIs, removal from the Web Store, security concerns, or administrator policies. Identify the exact error message and extension name, then search for maintained replacements or MV3-compatible alternatives.

Last reviewed: 2026-05-18

Chrome Extension Removed from Web Store: What to Do Next

Chrome removes extensions from the Web Store for policy violations, developer request, or malware detection. Do not install unofficial copies of removed extensions. Check for official alternatives, community forks, or browser-native features as your next step.

Last reviewed: 2026-05-18

Cannot Install Extension Because It Uses an Unsupported Manifest Version

Chrome shows an unsupported manifest version error when an extension package uses an older extension format that modern Chrome no longer accepts, most commonly Manifest V2. In current Chrome versions, ordinary users generally cannot fix this by changing a simple setting. Reinstalling the same extension, downloading random CRX files, or disabling security protections can create privacy and malware risks. The safer path is to check whether the developer provides a Manifest V3 version, install a maintained alternative from the Chrome Web Store, or use a browser that still supports the extension you need.

Last reviewed: 2026-05-28

Chrome 140 and Manifest V2 Extensions

Chrome 140 does not bring back Manifest V2 support for ordinary users. Manifest V2 extensions were disabled earlier in the MV2 phase-out, so old extensions that depend on MV2 usually do not work in modern Chrome. Users should check for maintained Manifest V3 updates, use trusted alternatives, or consider another browser only when they specifically need classic extension behavior. Avoid installing old CRX files or disabling browser protections, because unsupported extensions can request broad access to pages you visit.

Last reviewed: 2026-05-24

Can You Enable Unsupported Extensions in Chrome?

Chrome may disable extensions when they use deprecated APIs, violate Web Store policies, or show suspicious behavior. Ordinary users generally cannot permanently re-enable unsupported extensions in modern Chrome with a simple setting. If an extension was disabled because of malware, suspicious behavior, or a policy violation, the safer path is to remove it and use a maintained alternative from the Chrome Web Store. Avoid downloading old CRX files or disabling browser protections, because extensions can request broad access to pages you visit.

Last reviewed: 2026-05-26

This Extension Was Disabled Due to Malware, Suspicious Behavior, or a Policy Violation

Chrome may disable an extension when it detects malware, suspicious behavior, a Chrome Web Store policy violation, or a serious security concern. If you see this warning, do not try to force the same extension back into Chrome or download an old CRX copy from an unofficial source. Extensions can request broad access to pages you visit, so a policy-disabled extension should be treated as unsafe until the developer provides a clear, maintained update. The safer path is to remove the extension, check for an official update, and use a maintained alternative from a trusted source.

Last reviewed: 2026-05-27

Chrome Extensions Disabled: Why It Happens and What to Do

Chrome can disable extensions for several different reasons: the extension may no longer be supported, may rely on old Manifest V2 APIs, may violate Chrome Web Store policies, or may show suspicious behavior. Ordinary users usually cannot fix every disabled extension with one toggle. The right action depends on the warning Chrome shows. For unsupported extensions, look for a maintained Manifest V3 update or alternative. For malware, suspicious behavior, or policy warnings, remove the extension and avoid old CRX copies from unofficial sources.

Last reviewed: 2026-05-28

Proxy SwitchyOmega

Proxy Manager

Proxy SwitchyOmega stopped working in Chrome because Chrome 138 fully disabled Manifest V2 extensions. The closest migration path is ZeroOmega, a community fork designed for Manifest V3. FoxyProxy is another established option with advanced proxy management features. Both are available on the Chrome Web Store.

Last reviewed: 2026-05-27

uBlock Origin

Content Blocker

Classic uBlock Origin stopped working in Chrome 138+ because Chrome disabled Manifest V2 extensions. For many Chrome users, uBlock Origin Lite is the closest MV3-compatible option from the same developer, but it does not replicate every feature of the original extension. Firefox remains a practical option for users who need full classic uBlock Origin functionality, since Firefox still supports MV2 extensions. Avoid installing random CRX copies of classic uBlock Origin from unofficial sources, because modified extensions can create privacy and security risks. The MV3-compatible ad blocker space is actively developed, and other options like AdGuard AdBlocker and Adblock Plus are available in the Chrome Web Store.

Last reviewed: 2026-06-02

Great Suspender

Tab Management

The original Great Suspender was removed from the Chrome Web Store after a malicious version incident in 2021, and Chrome proactively disabled it for installed users. Users should avoid reinstalling old CRX copies from mirror sites because modified versions can contain unwanted code. For most Chrome users, Chrome Memory Saver is the simplest built-in replacement for tab suspension. Auto Tab Discard is a practical extension alternative for automatic tab unloading, while OneTab is better for manual tab consolidation and Workona is more focused on workspace management. The best option depends on whether you want automatic suspension, simple memory savings, or session organization.

Last reviewed: 2026-05-27

ModHeader

Developer Tool

ModHeader continues to work as an MV3-compatible extension for Chrome. It allows developers to modify HTTP request and response headers for testing and development. Alternatives like Requestly offer additional API testing features, while Header Editor provides similar header modification capabilities.

Last reviewed: 2026-05-13

DownThemAll!

Download Manager

DownThemAll remains available and actively maintained for Chrome as an MV3-compatible extension. It provides batch downloading and download management features. For simpler needs, Chrome native downloads or alternatives like Chrono Download Manager offer different workflows.

Last reviewed: 2026-05-13

Proxy SwitchyOmega

Proxy Manager

Proxy SwitchyOmega stopped working in Chrome 138 because Chrome disabled all Manifest V2 extensions. The closest migration path is ZeroOmega, a community-maintained MV3-compatible fork that can import your existing SwitchyOmega settings directly. FoxyProxy is another established option with MV3 support.

Last reviewed: 2026-05-21

Tampermonkey

Script Manager

Tampermonkey is actively maintained and works in modern Chrome as an MV3-compatible extension. It is the most widely used userscript manager. Violentmonkey is a lightweight alternative with a simpler interface.

Last reviewed: 2026-05-22

Violentmonkey

Script Manager

Violentmonkey is an open-source userscript manager used to run custom browser scripts on websites you visit. If you need a Violentmonkey alternative for Chrome, Tampermonkey is the most widely known option, while Violentmonkey remains a practical choice for users who prefer an open-source workflow. The right choice depends on script compatibility, permission expectations, browser support, and how much control you want over imported scripts. Userscript managers can run powerful code on pages you visit, so avoid random script mirrors, review script permissions, and only install scripts from sources you trust. The Violentmonkey page on Extension Fixes compares both options with migration steps, safety notes, and a full comparison table.

Last reviewed: 2026-05-26

Video DownloadHelper

Download Manager

Video DownloadHelper is a browser extension used by some users to save videos from supported websites, but Chrome users may look for alternatives because of compatibility, browser changes, or workflow preferences. The right option depends on whether the website explicitly allows downloads, whether you are saving your own content, and whether the tool is actively maintained. Avoid extensions that promise to bypass paywalls, DRM, or platform restrictions. For safer use, choose maintained tools, review permissions, and respect the terms and rights of the websites and creators involved.

Last reviewed: 2026-05-25

Auto Tab Discard

Tab Management

Auto Tab Discard is a Chrome extension used to reduce memory usage by unloading inactive tabs. If you are looking for an Auto Tab Discard alternative, Chrome Memory Saver is the simplest built-in option for many users, while OneTab is better for manually saving groups of tabs and Workona is more focused on workspace organization. Users coming from The Great Suspender should avoid old CRX copies and choose maintained options. The best choice depends on whether you want automatic tab unloading, manual tab saving, or full workspace management.

Last reviewed: 2026-05-27

FoxyProxy

Proxy Manager

FoxyProxy remains a practical Chrome proxy manager for users who need multiple proxy profiles, pattern-based switching, and quick control over browser proxy settings. If you are migrating from SwitchyOmega, ZeroOmega may feel more familiar because it is a community fork designed for modern Manifest V3 browsers. FoxyProxy is a better fit when you want an established proxy manager with long-running Chrome and Firefox support. The best choice depends on whether you need SwitchyOmega-style rules, FoxyProxy-style profiles, or a simpler one-click proxy switcher.

Last reviewed: 2026-05-22

Session Buddy

Tab Management

Session Buddy is an actively maintained session manager for Chrome that lets you save, organize, and restore tab collections. It works in modern Chrome as an MV3-compatible extension.

Last reviewed: 2026-05-21

Stylus

Custom Style Manager

Stylus is a Chrome extension available on the Chrome Web Store for applying custom CSS and userstyles to websites. It is actively maintained as an MV3 extension. If you need a Stylus alternative, the right option depends on whether you want full custom CSS control, simple dark mode, or only small personal tweaks. Dark Reader is better for automatic dark mode, while browser bookmarks or snippets may work for very simple personal styles. Custom CSS tools can change how pages look and behave, so users should review style sources before installing, avoid unknown mirrors, and disable styles they no longer use.

Last reviewed: 2026-05-30

Dark Reader

Accessibility

Dark Reader is a popular browser extension for applying dark mode to websites, but some users look for alternatives because of performance, site compatibility, or preference for custom CSS workflows. Chrome's built-in appearance settings may be enough for simple dark theme needs, while Stylus is better for users who want custom CSS styles on specific websites. The right choice depends on whether you want automatic dark mode, manual CSS control, or fewer extension permissions. Avoid installing unknown dark mode extensions that request broad access without clear maintenance or reviews.

Last reviewed: 2026-05-25

OneTab

Tab Management

OneTab is an actively maintained MV3 extension that consolidates open tabs into a shareable list, reducing memory usage. It works in modern Chrome and offers both manual consolidation and tab sharing features.

Last reviewed: 2026-05-21

User-Agent Switcher

Developer Tool

User-Agent Switcher is available as an MV3-compatible extension in the Chrome Web Store. It allows developers to test websites across different browser user agents. Requestly and similar API testing tools offer more comprehensive developer features.

Last reviewed: 2026-05-21

Grammarly

Writing Assistant

Grammarly is actively maintained and works in modern Chrome as an MV3-compatible extension. It provides real-time grammar, spelling, and style suggestions. For users who prefer open-source tooling, LanguageTool is an open-source alternative with similar features.

Last reviewed: 2026-05-21

LastPass

Password Manager

LastPass is actively maintained and available as an MV3-compatible extension for Chrome. It provides secure password storage, autofill, and multi-device sync. Bitwarden is a popular open-source alternative with similar features.

Last reviewed: 2026-05-21

Bitwarden

Password Manager

Bitwarden is an actively maintained MV3-compatible password manager with full source code transparency. It offers cloud-hosted and self-hosted options, making it popular among users who prefer transparent open-source tooling. LastPass and 1Password are alternatives with different feature sets.

Last reviewed: 2026-05-21

Honey

Shopping Tool

Honey is an actively maintained shopping utility for Chrome that automatically applies coupon codes at checkout and tracks price history. It works in modern Chrome as an MV3-compatible extension.

Last reviewed: 2026-05-21

Google Translate

Accessibility

Google Translate is the official Google extension for translating web pages and selected text directly in Chrome. It works in modern Chrome as an MV3-compatible extension. Alternatives like Microsoft Translator and DeepL offer different translation engines.

Last reviewed: 2026-05-21

Extension Search Tool

Tool

Search by extension name, Chrome Web Store URL, or extension ID to find current Chrome status, related fix guides, and alternatives.

All Comparisons

Hub

Side-by-side comparisons of Chrome extension alternatives.

Tampermonkey vs Violentmonkey for Chrome

Compare Tampermonkey and Violentmonkey for Chrome MV3, including permissions, open source status, sync, compatibility, and safety tips.

Last reviewed: 2026-05-25

uBlock Origin vs uBlock Origin Lite

Compare uBlock Origin and uBlock Origin Lite for Chrome users after Manifest V2. Learn what changed, what to use, and what to avoid.

Last reviewed: 2026-06-02

FoxyProxy vs SwitchyOmega

Compare FoxyProxy, SwitchyOmega, and ZeroOmega for Chrome proxy management. Learn which option fits profiles, rules, and MV3 migration.

Last reviewed: 2026-05-23

ScriptCat vs Tampermonkey

Compare ScriptCat and Tampermonkey for userscript management. Learn the workflow differences, migration notes, and safer script testing tips.

Last reviewed: 2026-05-28

Violentmonkey vs ScriptCat

Compare Violentmonkey and ScriptCat for userscript management. Learn workflow differences, MV3 notes, migration tips, and safer script testing practices.

Last reviewed: 2026-05-28

Chrome Extension Error Messages

Hub

Reference list of common Chrome extension warnings and errors, with explanations and next steps.

All Extension Alternatives

Hub

Browse all extension alternatives organized by category. Find MV3-compatible replacements for affected extensions.

All Fix Guides

Hub

Full list of extension fix guides covering MV2 deprecation, Chrome warnings, and store removals.

Chrome Userscript Manager Alternatives

The main Chrome userscript manager options are Tampermonkey and Violentmonkey. Tampermonkey is widely used and has a large userscript ecosystem, while Violentmonkey is a common choice for users who prefer an open-source workflow. The right choice depends on script compatibility, permissions, sync needs, and how much control you want over imported scripts. Userscript managers can run code on websites you visit, so choosing the extension is only part of the decision. You should also review script sources, inspect permissions, test scripts on non-sensitive pages, and remove old scripts you no longer use.

Last reviewed: 2026-05-22

Best Custom CSS and Dark Mode Extensions for Chrome

Chrome users who want to change how websites look usually compare two types of tools: automatic dark mode extensions and custom CSS or userstyle managers. Dark Reader is useful for applying dark mode across many websites, while Stylus is better for users who want site-specific CSS control. Browser built-in appearance settings may be enough for simple browser theming, but they do not replace full website styling tools. The right choice depends on whether you want automatic dark mode, custom CSS, fewer permissions, or simple browser theming.

Last reviewed: 2026-05-26

Best Userscript Managers for Chrome

Tampermonkey and Violentmonkey are the two most practical userscript managers available for Chrome. Both are available as MV3 extensions in the Chrome Web Store and continue to work in Chrome 138 and later. Tampermonkey offers the widest script library and a feature-rich interface, while Violentmonkey is fully open source with direct GitHub Gist sync. For very simple automation, browser bookmarks or the built-in snippets feature are options that do not require any extension. Before installing a userscript manager, verify the extension comes from the official Chrome Web Store and review what permissions each script you install requires.

Last reviewed: 2026-05-25

Best Tab Suspender Extensions for Chrome

For Chrome users looking for a tab suspender after The Great Suspender, the best option depends on the workflow. Chrome Memory Saver is the simplest built-in choice for reducing memory use. Auto Tab Discard provides more extension-based control over automatic tab unloading. OneTab is better for manually saving tab groups, while Workona is more useful for workspace and project organization. Users should avoid old Great Suspender CRX files from mirror sites because discontinued or modified extensions can create security and reliability risks.

Last reviewed: 2026-05-27

Chrome Extension Manifest V2 and V3 Explained

A Chrome extension manifest is the configuration file that tells Chrome what an extension is allowed to do, which APIs it uses, and how it should run. Manifest V2 and Manifest V3 are different extension platform versions. Many older Chrome extensions stopped working because Chrome phased out ordinary-user support for Manifest V2. If Chrome says an extension uses an unsupported manifest version, changing the manifest number alone usually does not fix the problem because the extension may depend on APIs that no longer work in modern Chrome. A practical path is to check for a maintained MV3 update, find an alternative extension, or use a browser that still supports MV2.

Last reviewed: 2026-05-28