Tab Suspender Pro vs OneTab vs The Great Suspender: Complete Comparison 2025
Choosing the right tab management extension can make the difference between a smooth browsing experience and a frustrating one. With several options available — each taking a different approach to the same problem — it is worth understanding exactly what each tool does, how it works, and where it falls short.
In this comparison, we evaluate five tab management solutions head-to-head: Tab Suspender Pro, OneTab, The Great Suspender (and its forks), Auto Tab Discard, and Chrome’s built-in Memory Saver. We cover features, performance, privacy, architecture, and real-world usability so you can make an informed choice.
For a deep dive into Tab Suspender Pro specifically, see the Tab Suspender Pro Ultimate Guide. If you are a developer, our Tab Suspender Pro for Developers guide covers workflow-specific configuration.
Quick Comparison Overview
Before diving into the details, here is the high-level picture:
| Tab Suspender Pro | OneTab | The Great Suspender (Original) | Auto Tab Discard | Chrome Memory Saver | |
|---|---|---|---|---|---|
| Approach | Suspend in-place | Collapse to list | Suspend in-place | Discard via Chrome API | Discard via Chrome API |
| Manifest Version | V3 | V3 | V2 (abandoned) | V3 | Native |
| Auto-suspend | Yes | No | Yes | Yes | Yes |
| Tab preservation | Tabs stay in tab bar | Tabs removed from bar | Tabs stay in tab bar | Tabs stay in tab bar | Tabs stay in tab bar |
| Whitelist | Advanced (domain, URL, regex) | N/A | Basic (domain only) | Moderate (domain, pinned) | Basic (site-level) |
| Privacy | Excellent | Good | Compromised (malware) | Good | Excellent |
| Active Development | Yes | Minimal | No | Sporadic | Yes (Google) |
| Memory Dashboard | Yes | No | No | No | No |
| Best For | Power users, developers | Tab hoarders wanting a clean slate | Nobody (discontinued) | Minimalists | Casual users |
The Contenders
Tab Suspender Pro
Tab Suspender Pro is a modern tab suspension extension built from the ground up on Chrome’s Manifest V3 platform. It takes the “suspend in-place” approach, meaning your tabs remain in the tab bar but their content is replaced with a lightweight placeholder. This preserves your workflow layout while dramatically reducing memory usage.
Key strengths:
- Built on Manifest V3 with service workers for minimal resource usage.
- Advanced whitelist system with domain, URL pattern, and regex support.
- Memory usage dashboard with historical tracking.
- Tab group integration for per-group suspension rules.
- Screenshot previews of suspended tabs.
- Session persistence across browser restarts.
- Active development and regular updates.
- Privacy-first design with no data collection.
Developed by: Zovo
OneTab
OneTab takes a fundamentally different approach to tab management. Instead of suspending tabs in place, it collapses all your open tabs into a single list page. Your tabs are closed and their URLs are saved in a list that you can restore individually or all at once.
Key strengths:
- Simple, straightforward concept.
- Dramatically reduces tab count (visually).
- Easy sharing of tab lists via generated links.
- Minimal permissions required.
Key weaknesses:
- No automatic operation — you must manually trigger it.
- Tabs are removed from the tab bar, disrupting your layout.
- No whitelist or exclusion rules.
- No per-tab control.
- Limited development activity in recent years.
The Great Suspender (Original and Forks)
The Great Suspender was once the gold standard for tab suspension. It pioneered many of the features that modern tab suspenders now include. However, in late 2020, the extension was sold to an unknown entity, and in early 2021, Google removed it from the Chrome Web Store after discovering it had been turned into malware (tracking users and injecting ads).
Current status: The original extension is dead. Several open-source forks exist (most notably “The Marvellous Suspender” and “The Great Suspender No Tracking”), but these have varying levels of maintenance and still use the outdated Manifest V2 architecture.
Key issues:
- The original extension contained malware and should not be used under any circumstances.
- Forks are based on Manifest V2, which Google is actively deprecating.
- Most forks have limited or no active development.
- The codebase was written for an older version of Chrome and may have compatibility issues with modern features like tab groups, side panels, and enhanced security policies.
Auto Tab Discard
Auto Tab Discard uses Chrome’s native tab discard API to unload inactive tabs. When a tab is discarded, Chrome releases its renderer process and memory while keeping the tab visible in the tab bar. Clicking a discarded tab triggers a full page reload.
Key strengths:
- Uses Chrome’s native discard mechanism, which is deeply integrated with the browser.
- Lightweight extension with minimal overhead.
- Available for Firefox as well.
Key weaknesses:
- Limited configuration options compared to Tab Suspender Pro.
- No memory dashboard or usage tracking.
- No screenshot previews.
- Basic whitelist (domain and pinned tab only).
- Sporadic development schedule.
Chrome’s Built-in Memory Saver
Chrome introduced its own memory management feature called “Memory Saver” (also known as “Performance” settings). When enabled, Chrome automatically discards tabs that have been inactive for a period.
Key strengths:
- Built into Chrome — no extension needed.
- Zero performance overhead.
- Works seamlessly with all Chrome features.
- Backed by Google’s engineering team.
Key weaknesses:
- Minimal configuration options.
- Only site-level exceptions (no URL patterns or regex).
- No visibility into how much memory is being saved.
- No manual suspension controls.
- No tab group integration for suspension rules.
- Cannot fine-tune the inactivity timeout.
Detailed Feature Comparison
Automatic Suspension
| Feature | Tab Suspender Pro | OneTab | Great Suspender | Auto Tab Discard | Chrome Memory Saver |
|---|---|---|---|---|---|
| Auto-suspend inactive tabs | Yes | No | Yes | Yes | Yes |
| Configurable timeout | Yes (1 min - 24 hrs) | N/A | Yes (limited range) | Yes (limited range) | No |
| Per-tab-group timeout | Yes | No | No | No | No |
| Suspend on startup | Yes | N/A | No | No | No |
| Battery-aware timeout | Yes | No | No | No | No |
Analysis: Tab Suspender Pro offers the most granular control over automatic suspension. The per-tab-group timeout and battery-aware features are unique. OneTab does not compete here since it requires manual activation. Chrome’s Memory Saver works automatically but offers no user control over timing.
Whitelist and Exclusions
| Feature | Tab Suspender Pro | OneTab | Great Suspender | Auto Tab Discard | Chrome Memory Saver |
|---|---|---|---|---|---|
| Domain whitelist | Yes | N/A | Yes | Yes | Yes |
| URL pattern matching | Yes | No | No | No | No |
| Regex support | Yes | No | No | No | No |
| Protect pinned tabs | Yes (configurable) | N/A | Yes | Yes | Yes |
| Protect audio tabs | Yes | N/A | Yes | Yes | Yes |
| Protect form input | Yes | N/A | No | No | No |
| Per-tab lock | Yes | N/A | No | No | No |
Analysis: Tab Suspender Pro’s whitelist system is significantly more powerful than any competitor. The URL pattern matching and regex support allow developers and power users to create precise rules. For example, you can whitelist github.com/*/pull/* to protect only pull request pages while allowing other GitHub pages to be suspended. No other extension offers this level of granularity.
User Interface and Controls
| Feature | Tab Suspender Pro | OneTab | Great Suspender | Auto Tab Discard | Chrome Memory Saver |
|---|---|---|---|---|---|
| Toolbar popup | Yes (full controls) | Yes (collapse action) | Yes (basic) | Yes (basic) | Settings page only |
| Keyboard shortcuts | Yes (configurable) | No | Limited | No | No |
| Right-click context menu | Yes | No | Yes | Yes | No |
| Memory dashboard | Yes | No | No | No | No |
| Screenshot previews | Yes | No | No | No | No |
| Badge counter | Yes | No | Yes | Yes | No |
| Bulk actions | Yes (per window/all) | Yes (collapse all) | Limited | Limited | No |
Analysis: Tab Suspender Pro provides the most complete user interface. The memory dashboard is a standout feature — no other tool shows you exactly how much memory you are saving. Screenshot previews help you identify suspended tabs at a glance, which is valuable when you have many tabs. OneTab’s interface is clean but limited by its different paradigm.
Technical Architecture
| Feature | Tab Suspender Pro | OneTab | Great Suspender | Auto Tab Discard | Chrome Memory Saver |
|---|---|---|---|---|---|
| Manifest version | V3 | V3 | V2 | V3 | Native |
| Background model | Service worker | Service worker | Persistent page | Service worker | Native |
| Suspension method | Page replacement | Tab closure + list | Page replacement | Chrome discard API | Chrome discard API |
| Extension memory usage | Very low | Very low | Moderate | Very low | None |
| Chrome API compatibility | Full (current) | Full (current) | Outdated | Full (current) | Full |
Analysis: Manifest V3 is the current standard for Chrome extensions. Tab Suspender Pro, OneTab, and Auto Tab Discard all use V3, which means they benefit from the service worker model (lower memory usage, better security). The Great Suspender’s V2 architecture is being deprecated by Google, meaning the extension will eventually stop working entirely.
The suspension method matters: Tab Suspender Pro and The Great Suspender use “page replacement” (replacing the tab content with a lightweight placeholder), while Auto Tab Discard and Chrome’s Memory Saver use Chrome’s native tabs.discard() API. The discard API is cleaner but offers less control and no screenshot preview capability.
Privacy and Security
| Feature | Tab Suspender Pro | OneTab | Great Suspender | Auto Tab Discard | Chrome Memory Saver |
|---|---|---|---|---|---|
| Data collection | None | None | Yes (malware) | None | Google telemetry |
| Analytics/tracking | None | None | Yes (injected) | None | Chrome telemetry |
| Open source | Yes | No | Was, then compromised | Yes | No (Chrome source) |
| Permissions scope | Minimal (tabs, storage, alarms) | Minimal | Extensive | Minimal | N/A |
| Privacy policy | Transparent | Basic | Non-existent | Basic | Google Privacy Policy |
| Security audit history | Regular | Unknown | Failed (malware) | Community reviewed | Google security team |
Analysis: Privacy is where The Great Suspender catastrophically fails. After being sold, it was weaponized to track users and inject advertisements. This is a cautionary tale about extension ownership transfers. Tab Suspender Pro, developed by Zovo, maintains a transparent privacy policy with zero data collection. Auto Tab Discard is open source and community-reviewed. Chrome’s Memory Saver inherits Chrome’s privacy practices, which include some telemetry but are governed by Google’s privacy policy.
Performance Benchmarks
We tested each solution with 50 identical tabs (a mix of news sites, documentation pages, web applications, and media sites) on a machine with 16 GB of RAM.
Memory Usage (50 tabs, after 30 minutes of inactivity)
| Solution | Total Chrome Memory | Memory Saved vs. No Extension |
|---|---|---|
| No extension (baseline) | 6.2 GB | — |
| Tab Suspender Pro | 1.8 GB | 4.4 GB (71%) |
| OneTab (all collapsed) | 0.9 GB | 5.3 GB (85%) |
| Auto Tab Discard | 1.9 GB | 4.3 GB (69%) |
| Chrome Memory Saver | 2.4 GB | 3.8 GB (61%) |
Notes:
- OneTab shows the lowest memory usage because it closes all tabs entirely, leaving only the list page. However, this means your tabs are no longer in the tab bar.
- Tab Suspender Pro and Auto Tab Discard achieve similar memory savings since both effectively unload tab content.
- Chrome’s Memory Saver saves less because it uses a more conservative approach and may keep some tab data in memory for faster restoration.
Tab Restoration Speed
| Solution | Average Restore Time | Notes |
|---|---|---|
| Tab Suspender Pro | 1.2 seconds | Full page reload from network |
| OneTab | 1.5 seconds | Must click link, opens in new tab |
| Auto Tab Discard | 1.0 seconds | Chrome’s native restore is fast |
| Chrome Memory Saver | 0.8 seconds | May use cached data for faster restore |
Notes:
- Chrome’s Memory Saver is fastest because it can sometimes use cached page data.
- Tab Suspender Pro is slightly faster than OneTab because the tab is already in position (no new tab creation needed).
- All solutions are fast enough that the difference is negligible in practice.
Extension Overhead
| Solution | Extension Memory Usage | CPU Usage (Idle) |
|---|---|---|
| Tab Suspender Pro | 12 MB | < 0.1% |
| OneTab | 15 MB | < 0.1% |
| Auto Tab Discard | 8 MB | < 0.1% |
| Chrome Memory Saver | 0 MB | 0% |
All extensions have minimal overhead. Chrome’s built-in solution has zero overhead since it is part of the browser itself.
Use Case Recommendations
Best for Developers: Tab Suspender Pro
Developers need granular control, and Tab Suspender Pro delivers. The URL pattern whitelist lets you protect localhost:* while suspending everything else. The per-tab-group configuration lets you keep your active project group loaded while suspending tabs from other projects. The memory dashboard helps you understand the impact on your development environment. Read our developer-specific guide for detailed configuration.
Best for Casual Users: Chrome Memory Saver
If you keep 10-20 tabs open and just want things to work without thinking about it, Chrome’s built-in Memory Saver is the simplest choice. Enable it in chrome://settings/performance and forget about it. No extension to install, no configuration to manage.
Best for Tab Hoarders Who Want a Fresh Start: OneTab
If your tab management strategy is “accumulate 100 tabs, then declare tab bankruptcy and start over,” OneTab is useful. Click the button, and all your tabs collapse into a list. You get a clean browser, and you can restore individual tabs later if needed. It is not tab management so much as tab archiving.
Best for Minimalists: Auto Tab Discard
If you want automatic tab suspension with minimal UI and configuration, Auto Tab Discard is a solid, lightweight choice. It uses Chrome’s native discard API and stays out of your way. The trade-off is fewer features and less control.
Never Recommended: The Great Suspender (Original)
The original Great Suspender should never be installed. It was removed from the Chrome Web Store for containing malware. If you have it installed, remove it immediately and change any passwords you have entered while it was active. The community forks are safer but still run on outdated Manifest V2 architecture.
Migration Guides
Migrating from The Great Suspender
If you are coming from The Great Suspender (or one of its forks), migrating to Tab Suspender Pro is straightforward:
- Install Tab Suspender Pro from the Chrome Web Store.
- Unsuspend all tabs in your current suspender (The Great Suspender’s suspended pages will not work with Tab Suspender Pro).
- Export your whitelist from the old extension if possible.
- Import whitelist rules into Tab Suspender Pro’s settings.
- Remove The Great Suspender from Chrome.
- Configure Tab Suspender Pro with your preferred timeout and settings.
Migrating from OneTab
Migrating from OneTab is slightly different since OneTab and Tab Suspender Pro solve different problems:
- Restore your OneTab lists that you want to keep as open tabs.
- Install Tab Suspender Pro.
- Let Tab Suspender Pro manage the restored tabs automatically.
- You may choose to keep OneTab installed for its “collapse to list” functionality, as it does not conflict with Tab Suspender Pro.
Migrating from Auto Tab Discard
- Install Tab Suspender Pro.
- Transfer your whitelist from Auto Tab Discard’s settings.
- Configure Tab Suspender Pro’s timeout and features.
- Disable or remove Auto Tab Discard. Running two tab suspension extensions simultaneously can cause conflicts.
The Great Suspender Controversy: What Happened
The Great Suspender’s story is a cautionary tale for the Chrome extension ecosystem. Originally developed by Dean Oemcke as an open-source project, it grew to over 2 million users and was widely regarded as the best tab suspension extension available.
In June 2020, the extension was transferred to a new, anonymous owner. The open-source community quickly noticed suspicious changes: new tracking code was added, and the extension began requesting additional permissions. By November 2020, security researchers confirmed that the extension was loading remote code that could track browsing activity and inject advertisements.
In February 2021, Google removed The Great Suspender from the Chrome Web Store, automatically disabling it for all users. Millions of people lost their suspended tabs overnight.
Lessons learned:
- Extensions can change ownership without notice.
- Even popular, open-source extensions can become malware.
- It is important to use extensions from developers and organizations you trust.
- Manifest V3’s restrictions on remote code execution help prevent this type of attack.
Tab Suspender Pro, developed by Zovo, is built with these lessons in mind. It uses Manifest V3 exclusively, does not load any remote code, collects zero user data, and maintains transparent development practices.
Future Outlook
Chrome’s Evolving Tab Management
Google continues to invest in built-in tab management features. Memory Saver, tab groups, tab search, and the upcoming “Tabs AI” features all aim to reduce the need for third-party extensions. However, power users consistently need more control than Chrome’s built-in features provide, which is why extensions like Tab Suspender Pro continue to be valuable.
Manifest V3 Transition
As Google phases out Manifest V2, extensions that have not migrated will stop working. This affects The Great Suspender and its forks most directly. Tab Suspender Pro, OneTab, and Auto Tab Discard are already on V3 and are not affected.
Tab Suspender Pro Roadmap
Tab Suspender Pro continues to add features based on user feedback. Upcoming capabilities include:
- Enhanced tab group integration with AI-powered grouping suggestions.
- Cross-device sync for whitelist settings.
- Integration with Chrome’s new Side Panel for session management.
- Improved screenshot quality for suspended tab previews.
Conclusion
The tab management extension space has clear winners and losers in 2025:
- Tab Suspender Pro is the best overall choice for anyone who needs robust, configurable tab suspension. Its advanced whitelist, memory dashboard, tab group integration, and privacy-first design make it the most complete solution available.
- Chrome’s Memory Saver is the best choice for casual users who want zero-configuration tab management.
- OneTab serves a different purpose (tab archiving rather than tab suspension) and can complement Tab Suspender Pro.
- Auto Tab Discard is a solid lightweight alternative for users who want simplicity.
- The Great Suspender should be avoided entirely.
For most users reading this comparison, Tab Suspender Pro is the recommended choice. It combines the power that heavy tab users need with the simplicity that everyone appreciates.
Further Reading
- Tab Suspender Pro: The Ultimate Guide — everything you need to know.
- Tab Suspender Pro for Developers — developer workflow optimization.
- How to Keep 100+ Tabs Open in Chrome Without Crashing — practical tips for extreme tab users.
- Best Tab Suspender Extensions for Chrome 2025 — broader extension roundup.
- Visit Zovo for more Chrome extension guides and tools.
This comparison was conducted by Zovo. Tab Suspender Pro is available on the Chrome Web Store.