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Change Safari homepage on Mac, set Safari to open a new window with a chosen site or blank page, fix extensions that reset homepage, clear website data, scan for hijackers, control new tab behavior, use Favorites, and understand iPhone Safari Start Page limits.

Change Firefox default search engine to Google Bing DuckDuckGo or another provider, add more search engines, use one-time keyword shortcuts, stop extensions from changing search, and restore built-in Firefox search engines.

Stop Chrome pop-ups by turning pop-up blocking back on, removing allowed sites, disabling suspicious extensions, resetting Chrome, scanning for adware, checking notification permissions, avoiding fake allow prompts, and recognizing virus-warning scams.

Cast a Chrome tab from Windows or Mac to a Chromecast Google TV or Cast-enabled device on the same Wi-Fi, use the toolbar or right-click menu, choose Cast tab desktop or file, fix missing devices, stop casting, and improve stuttering video.

Change whether Chrome opens PDFs in the built-in viewer or downloads them, use the PDF toolbar for zoom page jump rotate download print and dark reader options, set site-specific PDF behavior, troubleshoot broken PDFs, and disable PDF-related extensions.

Block websites in Chrome using Google Family Link for child accounts, site blocker extensions for self-control, or the hosts file for computer-wide blocking, plus how to remove blocks, cover mobile devices, and understand admin access limits.

Block many ads without browser extensions by enabling built-in pop-up and intrusive ad controls in Chrome Edge and Firefox, using DNS-level ad blocking on a device or router, understanding limits with same-domain ads, fixing broken sites, and combining browser and DNS filtering.

Allow pop-ups in Chrome for one trusted site from the blocked pop-up icon or Site settings, avoid enabling pop-ups globally, remove allowed sites later, recognize scam warning pages, and manage pop-ups on Android.

Allow pop-ups in Microsoft Edge for a trusted site from the blocked pop-up icon or Cookies and site permissions, avoid allowing all pop-ups, remove exceptions later, and understand work or school policy restrictions.

Allow third-party cookies for one trusted site in Chrome Edge or Firefox, understand Safari limitations, fix embedded payments sign-on and widgets, remove exceptions later, know what clearing data changes, and allow extra blocked domains when needed.