Before we start: With the most safe and reliable cleanup tool DMcleaner for Mac, you can easily delete YouTube cookies and cache on Mac. It can also remove any other system or app junk data to free up disk space and optimize the Mac performance.
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Whether you're experiencing playback glitches, slow loading times, or outdated content recommendations on YouTube, one simple fix can often resolve these issues—deleting cookies and cache. On a Mac, this process is straightforward, but varies slightly depending on the browser you use. This guide walks you through everything you need to know about clearing YouTube cookies and cache on Mac using Safari, Chrome, and Firefox, and even via Terminal, Finder or third-party Mac cleanup tools.

Why Should You Delete YouTube Cookies and Cache on Mac?
What Are Cookies and Cache?
Before diving into the how-to section, it's helpful to understand what cookies and cache actually do:
- Cookies are small text files that websites store on your device. They contain data like your login status, preferences, and tracking information.
- Cache refers to temporary storage of web content (images, scripts, etc.) that helps load websites faster on subsequent visits.
While these tools aim to improve your experience, they can also become outdated or corrupted, leading to issues such as:
- Slow YouTube loading or buffering
- Failure to sign in properly
- Out-of-sync preferences or recommendations
- Playback errors and bugs
Regularly clearing cookies and cache can resolve these problems and improve browser performance.
Reasons to YouTube cookies and cache
Here are some common reasons why Mac users clear their YouTube-specific cookies and cached files:
- Fix Performance Issues: If YouTube videos buffer excessively or fail to load, clearing cache often helps.
- Resolve Login and Sync Problems: Glitches with your Google or YouTube account can stem from corrupted cookies.
- Update Personalization: If YouTube is recommending irrelevant content, cached data may be outdated.
- Free Up Disk Space: Over time, accumulated cached files can consume significant storage.
- Improve Privacy: Deleting cookies helps limit tracking and enhances online privacy.
Common Issues Fixed by Deleting YouTube Cookies and Cache
Here's a quick list of frequent YouTube problems that may be fixed by clearing cached data:
Issue |
Resolved by Deleting Cache & Cookies? |
|---|---|
Videos not playing or buffering |
✅ |
YouTube layout broken |
✅ |
Logged in but can't access account features |
✅ |
Video thumbnails not showing |
✅ |
Outdated recommendations |
✅ |
YouTube loading slowly |
✅ |
Incorrect region/language settings |
✅ |
How to Clear YouTube App Cache on Mac?
Most Mac users access YouTube through a browser, but if you're using a third-party YouTube app built via a wrapper (e.g., Fluid, Unite, WebCatalog), cache may be stored in app-specific folders. Here we will introduce some methods to help you clear the YouTube Cache.
Method 1. Use Cleanup Tool (Recommended)
The most reliable and easy way to remove YouTube app cache on Mac is using a third-party cleanup tool. Donemax DMcleaner for Mac is highly suggested. The software can clear all system and app data, including YouTube cache on Mac.
Donemax DMcleaner for Mac
- Clear YouTube app cache and other junk data on Mac.
- Remove browser cookies for Safari, Chrome, etc.
- Check and delete duplicated and large files to free space.
The software is simple to use and you can quickly use the tool to clear the YouTube cache on Mac:
Step 1. Download and install the DMcleaner on your Mac. Run the app and change to Junk Cleaner option.

Step 2. Click Scan button to to search for any app cache files and other junk data on the Mac.

Step 3. Once the scan is done, review the list and click Detail of App Junk to select YouTube caches. At last, just click Clean to clear the selected items from your Mac.

Method 2. Manually Delete Cache Files:
- Open Finder. Click Go > Go to Folder. Enter the following path:
~/Library/Caches
- Locate the folder related to the app (e.g., com.fluidapp.FluidApp, com.webcatalog.yourapp).
- Delete or move the folder to Trash.
- Repeat the deletion process for the following path:
~/Library/Application Support
Method 3. Using Terminal to Clear YouTube Cache
If you're comfortable with the Terminal, you can manually delete cache files for YouTube from Chrome or Safari.
- Open Terminal from Utilities via Applications.
- Use the following commands depending on your browser.
For Chrome:
rm -rf ~/Library/Application\ Support/Google/Chrome/Default/Cache/*
rm -rf ~/Library/Application\ Support/Google/Chrome/Default/CookiesFor Safari:
rm -rf ~/Library/Caches/com.apple.Safari
rm -rf ~/Library/Cookies/Cookies.binarycookies
💡 Caution: These commands affect all cached content, not just YouTube. Always back up important data before using Terminal for system-level changes.
Delete YouTube Cookies and Cache for Browsers on Mac
Clearing cookies and cache is different for each browser. Below are step-by-step instructions for Safari, Chrome, and Firefox.
For Safari
Safari is the default browser for macOS. Here's how to remove YouTube-related data:
- Open Safari on your Mac. Click Safari in the top menu bar and select Settings.
- Go to the Privacy tab. Click Manage Website Data.
- In the search box, type YouTube. Select any entries that show up and click Remove.
- Click Done to confirm.

Optional Full Cache Clear: If you're facing severe issues, you can clear all Safari cache by:
- Clicking Develop > Empty Caches (Enable the Develop menu in Safari > Settings > Advanced first).

For Google Chrome
Google Chrome is popular for its speed and integration with Google services like YouTube. Here's how to delete YouTube cache and cookies:
- Launch Chrome. Click the three-dot menu in the top-right corner.
- Select Settings > Privacy and Security > Third-party cookies.
- Choose See all site data and permissions.
- In the search bar, type YouTube. Click the trash icon next to each YouTube-related entry.

Alternatively, click Delete browsing data:
- Select "Cookies and other site data" and "Cached images and files."
- Choose Time range as "All time."
- Click Delete Data.

💡 Note: This will log you out of YouTube and possibly other Google services in Chrome.
For Mozilla Firefox
Firefox gives users robust privacy controls. Here's how to remove YouTube-specific data:
- Open Firefox. Click the menu button (three lines in the top-right) and select Settings.
- Go to Privacy & Security. Scroll to Cookies and Site Data.
- Click Manage Data. Use the search bar to find YouTube.
- Select all entries and click Remove Selected (or Remove All Shown) > Save Changes.

Alternative, to clear all cached data, go to:
- Settings > Privacy & Security > Cookies and Site Data > Clear.

What Happens After Deleting YouTube Cookies and Cache?
1. You Will Be Logged Out of Your YouTube Account
If you clear cookies for YouTube (especially in Chrome and Firefox), your login session will be terminated. That's because cookies store authentication tokens that allow websites to remember your login credentials. Once deleted:
- You'll need to re-enter your Google account credentials the next time you visit YouTube.
- 2FA may trigger again for security purposes.
- Saved sessions on other Google services (like Gmail or Drive) may also be affected if you cleared data for all of google.com.
2. Personalized Content and Recommendations Will Reset Temporarily
YouTube uses cookies to store watch history, likes/dislikes, and search preferences that influence your home page and recommended videos.
After clearing this data:
- You may see default trending or popular videos instead of content tailored to your interests.
- Autocomplete suggestions in the YouTube search bar will be generic.
- The "Watch Again" and "Recommended" sections will look unfamiliar for a while.
However, if you're signed into your Google account, YouTube will gradually re-sync this personalized data from the cloud. The reset is usually temporary unless you also cleared your Google account activity history from your profile settings.
3. Saved Video Progress and Playback Settings Are Lost
YouTube often remembers your playback preferences via cache and cookies. For example:
- Whether you watch videos in HD, 480p, or 720p by default.
- If subtitles or captions were enabled.
- The exact point where you paused a video last.
After deletion:
- Videos may default to Auto quality.
- Subtitles or annotations settings may need to be reset.
- You'll lose "resume watching" markers for partially watched videos.
4. Faster and Cleaner User Experience
Deleting cache removes all temporarily stored elements like scripts, images, and video previews. This forces the browser to re-download them freshly the next time you visit.
Benefits:
- Broken or outdated elements get replaced with updated versions.
- Video players or interactive elements that were previously buggy may now function correctly.
- Browsing feels snappier and more responsive due to the removal of corrupted cache files.
Keep in mind that the very first load after clearing the cache may be slightly slower, as all elements are fetched anew—but subsequent visits will be smooth.
5. Enhanced Privacy and Security
If you're concerned about tracking, ad targeting, or session hijacking, deleting cookies and cache is a proactive step. Specifically:
- Cookies often track your behavior across multiple websites through third-party trackers embedded in YouTube.
- Cache can sometimes expose sensitive info like session tokens or media fragments if your Mac is accessed by others.
Clearing these files ensures:
- You're less vulnerable to cross-site tracking and cookie-based profiling.
- Your browsing footprint is minimized.
- Shared Mac users won't have access to your YouTube history or activity.
6. Site-Specific Errors Are Resolved
In some cases, errors like:
- "Something went wrong."
- "YouTube encountered a playback error."
- Infinite loading spinners
- Broken layouts or missing buttons
…can be resolved by clearing YouTube's cookies and cache. These errors often stem from:
- Corrupted JavaScript or CSS files in cache.
- Expired cookies that confuse session validation.
- Conflicting updates to YouTube's frontend not syncing well with old cached versions.
Clearing the data forces a complete reload of YouTube's latest assets and scripts, often solving these visual or functional bugs instantly.
Tips to Manage Cache and Cookies Efficiently on Mac
Maintaining healthy browsing data habits can save you from frequent clean-ups.
1. Use Private Browsing for Temporary Access
- In Safari, Chrome, or Firefox, use Private Window or Incognito Mode when watching YouTube temporarily. No cookies or cache are saved afterward.
2. Enable Auto-Clear Settings
- Firefox allows automatic clearing of cookies and cache on exit.
- Chrome and Safari have limited auto-clear options, but extensions can help.
3. Use Browser Extensions
Extensions like Click&Clean (Chrome) or Cookie AutoDelete (Firefox) let you schedule or automate cookie/cache cleaning.
4. Monitor Disk Usage
Use the macOS Storage Management tool to monitor how much disk space cache is consuming:
- Click Apple Menu > About This Mac > Storage > Manage.
Conclusion
Clearing cookies and cache specific to YouTube can resolve a wide range of playback, account, and display issues on your Mac. Whether you're using Safari, Chrome, Firefox, or even a third-party app, this guide has provided comprehensive steps to help you clean up and refresh your YouTube experience.
For best results, consider making this part of your regular Mac maintenance routine—perhaps once a month or whenever YouTube starts misbehaving. Your browser and your Mac will thank you for it.


Donemax DMcleaner for Mac
Donemax DMcleaner for Mac is an award-winning Mac cleanup & maintenance tool. It offers over 10 tools to help Mac users clean junk data. It helps speed up a slow Mac. Additionally, it includes a smart switch manager and disk manager for Mac.
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Maria
Maria is one of the senior writers & editors of Donemax who lives and works in Sydney, Australia. She loves PC, Mac and Internet Technology. She has 6 years of writing articles about data recovery on PC/Mac, disk cloning solution, data eraser and computer OS optimization, etc. She is also interested in testing various software and digital products.
Gerhard Chou
In order to effectively solve the problems for our customers, every article and troubleshooting solution published on our website has been strictly tested and practiced. Our editors love researching and using computers and testing software, and are willing to help computer users with their problems