Setting Google as Your Homepage Is Trivial, But People Overcomplicate It
The method varies slightly depending on which browser you use, but the general steps are nearly identical across Chrome, Edge, Firefox, and Safari. Below I'll cover each one separately because browser menus shift around enough that lumping them together just creates confusion. I'm going to walk through this for Chrome first since it's the most common, then touch on the others. If you're on a phone, the process is different and I'll get to that at the end. Open Chrome and click the three-dot menu in the top-right corner. Go to Settings, then scroll down to the "On startup" section. You have two options here: you can set the startup page to open a specific page, or you can choose to continue where you left off. Click "Open a specific page" and then "Add a new page." Type in https://www.google.com and save it. That's it.
Alternatively, if you want Google to open when you click the home button rather than on startup, go back to the three-dot menu, select "Settings," then under "Appearance" toggle on "Show Home button." Click the edit field next to it and enter the Google URL. These are two different things and people regularly confuse them, so pick the one that matches what you actually want. I spent about ten minutes once troubleshooting this exact issue for a coworker who kept getting redirected to Bing no matter what she changed. The problem turned out to be an enterprise policy pushed by her company's IT department. Chrome on work machines often has startup page settings locked down, and the only workaround is either switching to a personal profile or contacting whoever manages the device policies. Not something you'd guess from the settings menu alone.
Microsoft Edge
Edge works almost identically to Chrome since it's built on Chromium. Click the three-dot menu, go to Settings, and look for "Start, home, and new tabs." Under "When Edge starts," select "Open a specific page" and add google.com. For the home button, you'll find that option right below it in the same section. Toggle it on and enter the URL. One thing specific to Edge worth noting: if you have Microsoft 365 or a work account signed in, the browser may default to your Microsoft account's preferred homepage until you explicitly override it. I've seen this on multiple machines and it catches people off guard because the settings look like they applied correctly but the homepage reverts after a restart. Sign out of any work accounts temporarily while you change the setting, then sign back in. It usually sticks after that.
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Mozilla Firefox
Firefox has its own menu structure, which is why I'm listing it separately. Open the three-line menu in the top-right, click "Settings," and navigate to the "Home" panel on the left side. Under "New Windows and Tabs," there's a dropdown for the homepage URL. Select "Custom URLs" and type https://www.google.com. You can also set new tab pages separately if you want to keep those distinct. The Firefox quirk here is that extensions can override homepage settings without much warning. Ad blockers and privacy tools sometimes grab control of startup behavior, and you won't see anything in the settings that explains why your homepage isn't sticking. If you change the setting and it doesn't take effect, check your extensions list and temporarily disable anything related to ads, privacy, or tab management. That resolved an issue for me on a machine where uBlock Origin was silently resetting the homepage on every session start.
Safari on Mac
In Safari, click the Safari menu at the top of your screen, then select "Settings" (or "Preferences" on older macOS versions). Go to the "General" tab and find the "Homepage" field. Type in https://www.google.com and close the settings window. The change saves automatically. If you're on an older version of macOS where Safari doesn't show a homepage field directly, you can set it by navigating to any page, clicking File in the menu bar, and selecting "Add to Dock." Then right-click the icon, go to Options, and choose "As Startup Page." It's an archaic workaround that shouldn't be necessary but exists in some versions and tripped me up when helping someone with macOS Big Sur.
Mobile Browsers
Chrome on Android and iOS works differently than the desktop version. On Android, open Chrome, tap the three dots, go to Settings, and look for "Homepage." Toggle it on and enter the Google URL. On iOS, open Chrome, tap the three dots, scroll to Settings, and find "Homepage" under the General section. The steps are similar but the menu locations are less obvious than on desktop. Safari on iPhone and iPad requires you to open a new tab, tap the tab-switching icon (two overlapping squares), then long-press the "+" button and select "Add Current Tab" or set it through Settings > Safari > Homepage. It's not intuitive and Apple has moved the option around in different iOS versions, so the exact path depends on which version you're running.

Common Problems and Why Your Homepage Might Not Stick
Here are the issues I've actually run into rather than the theoretical ones you'll find in manuals. Malware or unwanted browser extensions are the number one reason homepage settings fail silently. If you installed something recently and your homepage changed without your input, that's the likely cause. Run a scan with Malwarebytes or check your extensions list manually and remove anything you don't recognize or remember installing. Group policies on work or school computers are the second most common blocker. If you're on a managed device, the IT department may have locked the homepage setting, and your changes will simply be overwritten on the next policy refresh cycle. There's no legitimate workaround for this short of using a personal device or requesting the change through proper channels. Browser updates occasionally reset settings during major version jumps. I've seen this happen after Chrome updated from version 118 to 119, where the startup page reverted to the default because the user had set it through an older settings path that the update deprecated. Check your homepage setting after any major browser update, especially if you haven't checked it in a while.
If none of the above applies and your homepage still isn't working, the most reliable fallback is to delete the browser's profile and create a new one. This clears out corrupted settings files that can interfere with homepage configuration. It's a nuclear option but it's also the step that resolved my own persistent homepage issue on a machine where nothing else worked. The downside is you'll lose bookmarks and saved passwords, so export those first if you have them.