Fix Unsupported Chrome Extensions

Find safe MV3 alternatives for Chrome extensions that are disabled, unsupported, removed, or no longer maintained.

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Last updated: May 2026

Quick Answer

Extension Fixes helps you find practical next steps when Chrome extensions stop working. Browse alternatives by extension name, match your exact warning message, or search for a specific extension — all without creating an account.

Built for AI-readable answers

Extension Fixes pages are structured with quick answers, comparison tables, safety notes, and source links so users and AI browsing tools can understand extension issues faster.

What do you need to fix?

Choose the scenario that matches your situation.

Popular Extension Alternatives

Find MV3-compatible replacements for commonly affected Chrome extensions.

Proxy SwitchyOmega

Proxy Manager

Affected by MV2

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.

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uBlock Origin

Content Blocker

Affected by MV2

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.

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Great Suspender

Tab Management

Removed

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.

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ModHeader

Developer Tool

Active (MV3)

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.

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DownThemAll!

Download Manager

Active (MV3)

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.

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Start with the Chrome message you see

Select the error message or warning you received to find solutions.

Why Chrome Disabled Old Extensions

Many older Chrome extensions were built for Manifest V2. Current Chrome versions now rely on Manifest V3 for supported extension workflows, so some older extensions may stop working unless the developer ships a compatible version.

Better Security

MV3 limits extension capabilities to reduce attack surfaces and prevent misuse.

Improved Privacy

Users have more control over permissions and what data extensions can access.

Better Performance

MV3 extensions use fewer system resources and have less impact on browser speed.

Learn more: Manifest V2 Disabled in Chrome: What You Can Do

Compare Extension Options

Head-to-head comparisons to help you choose the right extension for your workflow.

How Extension Fixes Works

1

Search the extension or error message

Enter the extension name, error message, or Chrome Web Store URL in the search box.

2

Read what changed and what to avoid

Learn why the extension stopped working and what safe steps you can take next.

3

Choose a maintained replacement or migration path

Select from verified alternatives and follow migration guides to continue your workflow.

Common Fix Guides

Understand and resolve common Chrome extension issues.

Frequently Asked Questions

Last updated: May 2026