Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

For less cross-site tracking, block third-party (also called cross-site) cookies rather than all cookies. Blocking every cookie is a broader setting that can disrupt sign-ins, preferences, and embedded features. The steps below cover Chrome on desktop, Firefox, and Microsoft Edge; menu names and availability can vary by platform and version.

Choose what you want to block

A first-party cookie comes from the site you are visiting and can keep you signed in or remember preferences. A third-party cookie comes from a different site embedded in or connected to the page, and can be used to track activity across sites. Blocking third-party cookies targets many forms of cookie-based cross-site tracking while retaining first-party cookies on sites you visit.

Blocking all cookies is more disruptive. Sites may lose sign-in state, language or other preferences, and embedded content or other features may fail. Cookie controls also do not stop every kind of tracking.

Disable third-party cookies in Chrome on a computer

  1. Open Chrome and select More > Settings.
  2. Select Privacy and security > Third-party cookies.
  3. Choose the option to block third-party cookies.

Google’s instructions are for Chrome on a computer; do not assume the same menu is available in every mobile version. When blocking is enabled, cookies from other sites are blocked unless the site is on your exceptions list. Incognito blocks third-party cookies by default. See Google Chrome’s cookie settings help.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
#1 Best Overall
Magicmoon 2-Pack 24 Inch Computer Privacy Screen Filter for 16:9 Monitor
  • Compatible Model(s): Magicmoon brand filter only for 24 inch -diagonally measured - widescreen monitor - aspect ratio 16:9 - filter size: width: 20 15/16", Height: 11 13/16" (531mm x 298mm)
  • Superior Privacy: The computer privacy filter makes the screen appear dark when looking at it from an angle (the angle is about 30 to 60 degree), but bright when looking directly at it. To change the privacy level - simply adjust your monitor’s brightness accordingly
  • Eye and Screen Protection: Privacy Filter does not only protect your private life but also protects your eyes by blocking 30% of blue light , blocking the harmful blue light between 380 to 495 nm, it filters out the blue light and relieves eye strain
  • Perfect For Open Workspaces: Great for maintaining screen privacy in open work spaces
  • Includes Two Options: Option 1 uses clear adhesive strips that securely attach to any computer screen. Option 2 (for computer screens with a raised bezel only) uses slide mount tabs that easily stick to the display frame, allowing you to slide the privacy screen filter on and off as needed

Allow a site that needs cookies

If a site stops working, add an exception for that site or use the temporary allowance if Chrome offers it. Google says a temporary allowance applies to the current site and, in regular browsing, remains for 90 days or until the setting is turned off. You can also turn off blocking when needed, but a site-specific exception limits the change.

Disable cross-site cookies in Firefox

  1. Open the Firefox menu and select Settings.
  2. Select Privacy & Security.
  3. Under Enhanced Tracking Protection, choose Custom.
  4. Check Cookies, then select the cookie types to block. To block all third-party or cross-site cookies, choose All cross-site cookies (may cause websites to break).

Firefox’s Total Cookie Protection is a separate approach: it partitions third-party storage into a separate cookie jar for each site instead of simply blocking every cookie. Mozilla says this protection is enabled by default worldwide. Protection can still affect embedded content or login flows. A site failure may have another cause, so test whether changing the protection setting resolves it. See Mozilla’s Enhanced Tracking Protection guide and Total Cookie Protection and website breakage FAQ.

Rank #2
[2 Pack] 24 Inch Computer Privacy Screen Filter for 16:9 Widescreen Monitor
  • 【24 PRIVACY FILTER DIMENSIONS】 Width: 20 15/16" (20.9 inches/532 mm), Height: 11 13/16" (11.8 inches/299 mm) - 16:9 Aspect Ratio. Mamol computer privacy filters are designed to be perfectly compatible with HP, Samsung, Dell, Lenovo, Acer, Asus, LG, ViewSonic and other brands of monitors. Please check the width and height dimensions of your computer screen before ordering. If you have any questions about the dimensions, please contact us.
  • 【ENHANCED PRIVACY PROTECTION】Mamol 24 inch computer privacy filter keeps your electronic information confidential, making it excellent for use in high traffic areas. the computer privacy screen 24 inch is designed with advanced microlouver technology to block visibility at around 30 degrees and black out screens completely near 60 degrees.
  • 【EYES PROTECTION】 This blackout privacy screen greatly reduces eye strain and minimizes potential hazards to vision. It filters 99.9% of UV rays and suppresses 98% of blue light. As a reversible 24-inch privacy screen filter: The glossy side of the protector provides extra clarity and greater privacy, and the matte side minimizes glare and distracting reflections. Satisfy your different daily uses as needed.
  • 【BETTER HD CLARTIY】Mamol 24 inch computer privacy screen Shield adds an extra layer of AR Ultra HD light transmission compared to others. It maintains the high definition of the screen without sacrificing too much screen brightness. It won't reduce the brightness and cause eye fatigue because of the privacy screen installed on the screen.
  • 【ANTI SCRATCH & WASHABLE 】Our privacy anti-glare Monitor film has a surface enhancement layer to protect the privacy filter from scratches and fingerprints. It is washable and reusable. Even after prolonged use, you will get a brand new privacy screen for your desktop computer monitor after cleaning. Very Durable!

Make an exception for one site

If a page malfunctions, select the shield icon beside the address bar and turn off Enhanced Tracking Protection for that site. Firefox reloads the page with trackers enabled there. This is a site-specific workaround, not a reason to lower protection everywhere.

Disable cookies in Microsoft Edge

  1. Open Edge and select Settings.
  2. Select Privacy, search, and services > Cookies.
  3. Turn on Block third-party cookies to block third-party cookies while retaining first-party cookies.

Edge also has an all-cookie control: turn off Allow sites to save and read cookie data (recommended). Blocking all cookies can stop pages from displaying correctly or prompt sites to ask you to allow cookies. For narrower control, use Edge’s allowed and blocked cookie lists for individual sites. Instructions are in Microsoft Edge’s cookie help.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
Rank #3
SightPro 24 Inch 16:9 Computer Privacy Screen Filter for Monitor - Privacy Shield and Anti-Glare Protector
  • 【Privacy Filter Dimensions】- Width: 20 15/16" (532 mm), Height: 11 13/16" (299 mm), Diagonal: 24" (609.6 mm) - SightPro Blackout Privacy Screen Filter is engineered to be compatible with HP, Dell, Samsung, Lenovo, LG, Acer, ASUS, ViewSonic, and other monitor brands. Please verify your computer screen's width and height measurements before ordering. It's not recommended to make your selection based solely on your computer screen's diagonal size.
  • 【Two Attachment Options】- Installs in minutes. Option 1 uses clear adhesive strips that securely attach to any computer screen. Option 2 (for computer screens with a raised bezel only) uses slide mount tabs that easily stick to the display frame, allowing you to slide the privacy screen filter on and off as needed.
  • 【Superior Privacy and Anti Glare】- Our advanced multi-layered film filter blacks out your computer screen when viewing from the side, while maintaining a crystal clear screen straight-on. It also protects your eyes from harmful glare, UV, and blue light. [Note: It does not block visibility directly behind you, regardless of the distance.]
  • 【Perfect for Travel and Open Workspaces】- Our computer screen privacy filter is the ideal solution for healthcare providers, mobile workers, commuters, students, and business travelers. Now you can stay compliant and safeguard sensitive corporate information while working in airplanes, subways, airports and public areas.
  • 【Package Contents】- Each package includes one privacy screen shield filter, two sets of clear adhesive strips, two sets of slide mount tabs, and a microfiber cleaning cloth. Buy with confidence – located in the US, Sight Pro specializes in providing best-in-class privacy solutions to individuals, small businesses, corporations, government, and educational institutions. Our privacy screens are Section 889 and TAA compliant.

Delete existing cookies separately

Changing the blocking rule affects future cookie use; it does not itself remove cookies already stored. To clear stored cookies, open Settings > Privacy, search, and services > Clear browsing data and select Cookies and other site data. Edge says this signs you out of most sites. Edge can also delete cookies and site data each time it closes, which likewise signs you out of most sites.

Safari and other browsers

Safari settings differ between iPhone, iPad, and Mac. Use Apple’s current instructions for your device rather than relying on a menu path meant for another platform: Apple Support.

Rank #4
Peslv 2-Pack 24 Inch 16:9 Computer Monitor Privacy Screen, WxH:532 * 299mm
  • 【PRIVACY FILTER DIMENSIONS】- Width: 20 15/16" (532 mm), Height: 11 13/16" (299 mm), Diagonal: 24" (609.6 mm) - Peslv Dark 24 inch Privacy Screen Filter is engineered to be compatible with 24in Dell, HP, Samsung, Lenovo, LG, Acer, ASUS, Toshiba, ViewSonic, Aoc, Sceptre, PHILIPS, ViewSonic and other brands monitors with 16:9 aspect ratio. Please verify your computer screen's width and height measurements before ordering. It is not recommended to select a size based solely on the diagonal.
  • 【HIGH-CLASS PRIVACY ABLE】Peslv collected suggestions from more than 2000 computer users and performed 22188 anti-peep angle corrections on the micro-blind optical technology to ensure that any line of sight beyond +-30° facing the screen will be shielded. With a Peslv computer privacy screen 24 inch, Protect the privacy of your computer monitor screen and no longer leak any confidential data.
  • 【2 MOUNTING OPTIONS FOR EASY INSTALLATION】The Peslv 24 inch privacy screen for monitor supply 2 installation options, Various installation options, are Compatible with both 24" computer monitors with raised bezels and full-screen 24" computer monitors without raised bezels, and convenient installation allows you to complete the installation in 9 seconds. NOTE: Monitors without raised bezels are only available with mounting option 2.
  • 【EXCLUSIVE DOUBLE-SIDED TECHNOLOGY】24-inch monitor privacy filter has a double-sided surface technology developed by Peslv. Matte or Glossy. With the matte surface facing outward, you can experience the advanced AG anti-glare technology from Germany while maintaining a 30-degree privacy angle, softening the strong light outdoors, and making the screen content clearly visible. With the glossy side facing outward, you can get a super anti-peeping effect with a privacy angle of 26 degrees.
  • 【PROTECT SCREEN ALSO EYES】Filtering optical materials imported from Japan can reduce 92% of blue light and 98% of UV light, and filter all harmful light emitted from the screen to protect your eyes. The high-transparent and reinforced built-in protective layer not only presents high-definition picture quality but also protects your screen from scratches. Hurry up and place an order, own a privacy screen for a computer monitor 24 inch, and protect your monitor screen and your eyes.

For Safari, Samsung Internet, Opera, and additional browser links, USAGov maintains a guide to blocking cookies. Its guidance warns that blocking may adversely affect site functionality: USAGov opt-out instructions. Browser protections also differ in approach: some settings block cookies, while others partition storage or block trackers. A setting in one browser is not a universal privacy ranking.

If a website stops working

  • Sign-in fails or you are repeatedly logged out: allow cookies for that site or use a site-specific exception if your browser provides one.
  • An embedded video, payment flow, or other embedded feature fails: third-party or cross-site storage may be involved. Try a temporary or per-site allowance rather than permitting all cookies globally.
  • A page remains broken after changing cookie settings: the cause may be unrelated. Reload the page and test the setting; Firefox’s support guidance specifically cautions that cookie protection is not necessarily the cause.
  • You cleared cookies and lost sessions: this is expected for many sites. Sign in again; clearing stored data is different from changing the rule for future cookies.
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Or skip the browser setup

If your goal is a clean screenshot rather than changing browser privacy settings, ScreenshotNeo is a website screenshot API and MCP server. A single GET request can return a PNG, JPEG, WebP, or PDF. Its capture flow accepts cookie or consent banners and removes more than 60 known consent platforms, newsletter popups, and chat widgets before the screenshot; each step can be turned off. Bot checks, blank pages, timeouts, failed loads, and cache hits are not billed, and responses identify the page verdict and billing status in headers. AI agents can use its MCP server tools, including take_screenshot, get_page_info, and capture_pdf.

Free tools Windows power users keep installed

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Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

For example, this cURL request saves a WebP screenshot of the target URL; replace the placeholder with your API key. See the ScreenshotNeo documentation for request options.

Best Value
ZOEGAA [2-Pack Computer Privacy Screen Protector 24 Inch 16:9 Aspect Ratio
  • [How To Determine The Screen Size]: Before Purchasing Our 24 inch privacy screen for monitor, Please Measure The Size Of Your Computer Screen First. Our computer privacy screen 24 inch Is Suitable For Computer Screens With A Width Of 20.92 Inches (53.13 Cm), A Height Of 11.77 Inches (29.89 Cm), And A Diagonal Length Of 24 Inches (60.96 Cm). (It Is Not Recommended To Choose The Size Only Based On The Diagonal Length.) The ZOEGAA 24-Inch 16:9 computer privacy screen Is Compatible With HP, Samsung, Dell, Lenovo, Acer, ASUS, Viewsonic And Other 24-Inch 16:9 Computer Monitors. Welcome To Your Purchase!
  • [Outstanding Privacy Effect]: The Engineer Team Of ZOEGAA Has Collected Suggestions From Over 5,000 Computer Users And Corrected The Anti-Peep Viewing Angle Of The Micro-Blind Optical Technology For 35,462 Times To Ensure That The View Beyond ±30 Degrees Will Be Hidden. People On Your Left And Right Will See A Black Screen.
  • [How To Install]: ZOEGAA 24 inch monitor privacy screen Supports 2 Installation Methods. The First One Is The Insert Type Installation, Which Is removable. The Second One Is The Mounting Adhesive Installation, Which Is Non-Detachable. For Detailed Installation Methods, Please Refer To The Pictures Or Videos In The Listing.
  • [Better Clarity]: ZOEGAA privacy screen 24 inch monitor. It Has Added An AR High-Definition Light-Transmitting Layer, Which Enables The computer monitor privacy screen To Maintain Its Original Clarity While Achieving The Anti-Spy Effect; It Will Not Cause Eye Fatigue Due To The Installation Of The privacy screen for monitor.
  • [Reversible Glossy And Matte Surfaces]: The 24 in privacy screen for monitor Of ZOEGAA Has Two Different Surface Textures - The Glossy Surface Offers Better Anti-Peeping Effect, While The Matte Surface Provides Better Anti-Glare Performance. The Matte Surface Is Suitable For Use In Strong Light Environments. This 24 inch monitor privacy screen Also Has Anti-scratch And Anti-Fingerprint Functions, Ensuring That You Won't Worry About Being Damaged By sharp Objects During Use. It Is Washable And Can Achieve A Brand-New Appearance After Being Washed.
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Frequently Asked Questions

Does blocking third-party cookies block all tracking?

No. It reduces cookie-based tracking across sites, but other tracking methods may still operate.

Will clearing cookies turn off cookies in the future?

No. Clearing removes stored cookie data; use the browser’s cookie settings to change what sites can store going forward.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.