How do I clear my browser cache and cookies, reset my browser settings, and update my browser?

Why do we suggest that you clear your browser cache and cookies, reset your browser settings, or update your browser when you're seeing unblocked ads?

  • Your browser cache may retain information from a previous visit to a website with ads.
  • A website may have created cookies on your computer that interfere with ad blocking.
  • Malware can change your browser settings to keep your ad blocker from working.
  • Browsers sometimes have bugs that make it difficult to block ads properly. Updating your browser makes sure it has any bug fixes that have been released.


Clear your browser cache and cookies

Chrome
  1. Click the 3 vertical dots in the upper right-hand corner of your browser
  2. From the Chrome menu, select More tools, then select Clear browsing data
  3. Select how much data you want to clear and follow the prompts in Chrome
Firefox
  1. Click the Library button in the upper right-hand corner of the browser, select History, then select Clear Recent History

    Clearing browsing data in Firefox

  2. Select how much data you want to clear and follow the prompts in Firefox
Edge
  1. Click the More menu (...), then select Settings
  2. Under Clear browsing data, click Choose what to clear
  3. Select how much data you want to clear and follow the prompts in Edge
Safari/Mac

This helpful article from OSXDaily.com includes where to find the web caches for different versions of MacOS and a few additional tips for troubleshooting Safari.

Reset your browser settings


Do this only if clearing your cache and cookies doesn't fix the issue.


Warning: Be sure to back up your saved passwords and bookmarks first! If you're not sure how, search for "backup saved passwords and bookmarks [your browser name]" in your favorite search engine, replacing "[your browser name]" with your browser as appropriate.


Chrome
  1. Click the 3 vertical dots in the upper right-hand corner of your browser
  2. From the Chrome menu, click Show advanced settings
  3. Under Reset, click Reset, and then click Reset again to confirm
Firefox
  1. Click the 3 horizontal lines in the upper right-hand corner of your browser
  2. Click Help and select Troubleshooting Information (you may also enter about:support in the address bar to bring up the Troubleshooting Information page)
  3. Click Refresh Firefox at the top right corner of the page 
  4. Firefox will close. After the refresh process completes, click Finish in the window that opens
Edge

See this article for help with Edge: Reset Microsoft Edge to default settings

Safari/Mac
  1. Open the Safari menu > Safari > Preferences
  2. Select the Advanced tab and click Show Develop menu in menu bar
  3. Select Develop > Empty Caches.


Update your browser

Chrome
  1. Click the 3 vertical dots in the upper right-hand corner of your browser
  2. Click Update Google Chrome. If you don't see this, you're already on the latest version
  3. Click Relaunch
Firefox
  1. Click the 3 horizontal lines in the upper right-hand corner of your browser
  2. Click Help, and then select About FirefoxIf an update is available, it will download automatically.
  3. When the update is ready, click Restart Firefox to Update
Edge
Edge is built into Microsoft Windows. To update Edge, update Windows:
  1. Click the Windows button, then click the gear icon (Settings).
  2. Click Update and Security.
  3. In the left side menu, click Windows Update.
  4. If an update is available, click Install now.
Safari/Mac
To get the latest version of Safari, simply install the latest macOS.
To keep Safari up to date for an earlier macOS, install the latest updates for that macOS.

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