For years, Chrome was the default choice for Turkers because the original MTurk Suite extension was built for it. However, the landscape has changed.
The problem with Chrome: Google is increasingly cracking down on background scripts. "Manifest V3" is Google’s new extension specification that severely limits what ad-blockers and scraping tools (like HIT Catcher) can do. Many workers report that MTS runs slower on Chrome now, or that the Catcher stops working after a few hours.
The advantage of Firefox: Mozilla has committed to maintaining "Manifest V2" support, which allows extensions to run with fewer restrictions. This means:
Verdict: If you are serious about Turking as a part-time job, MTurk Suite for Firefox is the superior technical choice.
| Feature | Function | Works on Firefox? | |---------|----------|-------------------| | HIT Finder | Real-time search & filter for HITs | ✅ Yes, slightly slower refresh | | HIT Tracker | Logs daily earnings, pending, rejected HITs | ✅ Yes, reliable | | HIT Catcher | Auto-grabs HITs from a watchlist (Panda) | ✅ Yes, but less stable than Chrome | | Requester Details | Shows approval ratings, payment speed | ✅ Yes | | Block List | Hide requesters or HITs | ✅ Yes | | Queue Helper | Auto-refresh & return HITs from queue | ✅ Yes |
For years, the turking community has debated whether Chrome or Firefox is the superior platform for running scripts. While Chrome may hold the majority of general browser market share, Firefox offers specific advantages that make MTurk Suite more stable and effective.
1. Superior Script and Extension Management: Firefox’s architecture handles resource-intensive extensions more gracefully than Chrome. MTS, particularly the HIT Catcher, can generate hundreds of requests per minute as it scans for and attempts to grab HITs. Firefox’s threading model and memory management reduce the likelihood of the extension freezing or crashing during peak work hours (e.g., when batches from requesters like MLDataLabeler or PickFu are released). Turkers frequently report that MTS on Firefox consumes less system memory and remains responsive even after hours of continuous catching.
2. Fewer Conflicts with Anti-Adblock and Bot Detection: Amazon has, on occasion, updated its MTurk frontend in ways that inadvertently interfere with automation scripts. Some users have noted that Chrome’s aggressive sandboxing and frequent updates can temporarily break MTS functionality. Firefox, with its more consistent extension API and less frequent disruptive changes, often sees faster informal patches from the MTS developer or community workarounds. Moreover, Firefox’s built-in Enhanced Tracking Protection rarely flags MTS as a threat, whereas some Chrome security updates have temporarily blocked MTS features.
3. Privacy and Data Control: A subtle but important factor is data transparency. MTS does not phone home to external servers; all data—your HIT history, earnings, and blocklists—is stored locally in your browser’s IndexedDB. Firefox offers users more granular control over local storage, allowing tech-savvy Turkers to manually back up or migrate their MTS database. This is critical because losing a HIT Database with years of requester history can be devastating to a turker’s ability to avoid low-quality or unfair requesters.
The original "MTurk Suite" was an all-in-one extension that included tools for searching for hits, managing your queue, and tracking your earnings. However, the original extension is no longer actively maintained and may not function correctly with current versions of Firefox or Amazon Mechanical Turk's updated website code.
If you’re a Firefox-first user, MTurk Suite is absolutely worth installing. For casual or intermediate turkers, you won’t miss anything critical. Power users chasing the very last millisecond might still prefer Chrome – but for a clean, private, and memory-efficient browsing experience, MTS on Firefox is a solid 4/5. mturk suite firefox
Recommended for: Privacy-conscious turkers, Linux users, and anyone tired of Chrome’s RAM hunger.
Not ideal for: Those relying on bleeding-edge community scripts or needing split-second PRE avoidance.
MTurk Suite (MTS) is a comprehensive browser extension for Firefox and Chrome that consolidates several popular tools used by Amazon Mechanical Turk workers into a single interface. Firefox Add-ons
Designed by developer Kadauchi, it is intended to improve efficiency by automating task discovery and management. You can download it directly from the Firefox Add-ons store Key Components
The suite is essentially a "toolbox" that includes several primary modules: HIT Finder:
Continuously scans the MTurk marketplace for new tasks (HITs) based on your custom filters, such as minimum pay or specific requesters. HIT Catcher:
Automatically attempts to "catch" or accept specific HITs that are in high demand or have been returned by other workers. HIT Tracker:
Maintains a local database of your work history, showing which HITs you have submitted, their approval status, and projected earnings. TurkerView Integration:
Displays requester ratings directly on the MTurk interface, helping you avoid "rejection-heavy" or low-paying requesters. Firefox Add-ons Core Features
MTurk Suite also includes several "quality of life" enhancements for the MTurk worker site: Firefox Add-ons Auto-Accept Checker: Quickly toggles the "auto-accept next HIT" setting. Block List:
Allows you to hide specific requesters or HIT titles that you do not want to see. HIT Exporter: For years, Chrome was the default choice for
Formats HIT information into BBCode or Markdown so you can easily share high-paying tasks on forums like MTurk Crowd or Reddit. Workspace Expander:
Increases the viewable area of the HIT workspace to reduce scrolling. Queue Info Enhancer:
Provides more detailed information about the tasks currently in your work queue. Firefox Add-ons Installation & Security Mturk Suite – Get this Extension for Firefox (en-US)
MTurk Suite (MTS) is a comprehensive, open-source browser extension designed to optimize the workflow of Amazon Mechanical Turk
(MTurk) workers. While widely used for years, recent community reports suggest the extension is no longer actively supported
and may face compatibility issues with modern browser updates. Core Functionality
The extension integrates multiple tools into a single interface to help workers find, track, and manage Human Intelligence Tasks (HITs): Firefox Add-ons HIT Finder:
Scans the MTurk marketplace for new tasks based on user-defined filters. HIT Catcher:
Automatically attempts to "catch" or accept specific HITs that are currently unavailable but might reappear. Requester Reviews: Integrates data from platforms like TurkerView to show requester reputations and historical pay rates. Workspace Enhancements:
Includes features like a "Workspace Expander" for a larger working area and a "Rate Limit Reloader" to handle refresh limits. HIT Export: Verdict: If you are serious about Turking as
Allows workers to share task details with community forums like MTurk Crowd Firefox Add-ons Firefox Installation & Permissions MTurk Suite can be downloaded via the Firefox Add-ons store
. To function, it requires extensive permissions, including: Firefox Add-ons Accessing data on worker.mturk.com amazon.com Accessing browser tabs and notifications. Inputting data to the clipboard. Current Support Status & Issues
As of mid-2024 and early 2025, the community has flagged several critical concerns: End of Support: Discussions on TurkerView
indicate the developer (Kadauchi) may have ceased updates, leading to fears that browser updates (like Chrome's move to Manifest V3) will eventually break the extension entirely. Feature Failures:
Some users have reported that features like Turkopticon integration or Text-to-Speech engines have stopped working or were never fully functional in specific Firefox versions. Firefox Updates:
Historically, major Firefox updates (e.g., Firefox 57) have caused compatibility issues with legacy MTurk scripts, and users continue to report intermittent bugs in newer versions. Comparison of Tools within MTS Primary Purpose Key Benefit HIT Finder Search tasks Eliminates manual refreshing of the MTurk dashboard. HIT Catcher Auto-accept tasks Snags high-paying HITs that disappear quickly. Requester Reviews Safety/Fairness Helps avoid requesters with a history of unfair rejections. HIT Exporter Facilitates community knowledge sharing. or more modern browser extensions for MTurk? Mturk Suite – Get this Extension for Firefox (en-US)
After installing MTS from the Firefox Add-ons store, go to about:addons → MTurk Suite → Permissions → enable “Access your data for all websites” – otherwise, HIT Catcher may not open properly.
❌ Catcher less effective – drops loops more often than Chrome
❌ Some UI elements misaligned on high-refresh monitors
❌ No “once per day” auto-update check (you must manually reinstall for new features)
❌ Slower HIT acceptance race vs. Chrome MTS users
❌ Rare sync issues – Tracker may double-count earnings on slow connections
Amazon Mechanical Turk (MTurk) has long provided a platform for workers—known as Turkers—to complete micro-tasks, known as Human Intelligence Tasks (HITs), in exchange for monetary compensation. However, the native MTurk interface is notoriously sparse, lacking real-time analytics, efficient search filters, and queue management tools. This is where third-party browser extensions step in, and among them, MTurk Suite (MTS) stands as a titan. While MTS is available on multiple browsers, its performance and integration with Firefox offer a unique and compelling case for why this combination represents the gold standard for turkers seeking efficiency and profitability.