0. Clean up after yourself
Before you get down to tweaking, it’s important to clean up the cruft that’s built up already. If you click Advanced from the Settings page then choose Clear browsing data, you can wipe out all the cookies stored in Chrome, as well as other images and temporary data stored on your local computer.
Use the Advanced tab for more control over what gets deleted, then use the Time range drop-down to choose how far back the clear-out goes. If you want to remove all traces of your browsing on your current computer without affecting the historical browsing history Google has logged for you, click the Sign out button first.
It’s good to do periodically, but especially before you get down to business with other tweaks.
1. Set your browsing data to self-destruct
Google uses the data it collects about you in Chrome to know what you’re going to search for next, or to decide which restaurants it should recommend to you, or to help you get back to something you were looking at weeks ago. It’s up to you how much you trust Google with your data and how you want to balance privacy with convenience.
You can now tell Google to automatically delete your browsing history after three months, so its recommendations and other algorithms are only running from recent data. From the Settings tab, click Sync and Google services, then Control how your browsing history is used, then Manage activity—the three month auto-delete will be one of the options at the top.
2. Control what Google gets to know
Also on the Sync and Google services page from Settings, you can control how much diagnostic data and other information gets sent back to Google for analysis—Google wants this data to spot bugs in Chrome, and to make it easier for you to browse the web (with auto-complete search suggestions) and so on, but you can stop some of this feedback if you want to.
Toggle any of the switches on the right to Off to limit what Chrome is sending back to home base. For example, you can stop sending the URLs of the pages you visit to Google, and turn off the feeding back of statistics about how you use the browser.
3. Sign into Google without signing into Chrome
By default, whenever you sign into a Google service like Gmail, Chrome now also signs you into the browser itself (to sync passwords, browsing history, bookmarks and so on between devices). This is helpful if you’re jumping between different computers and phones a lot, but you might also want to use Gmail or Google Docs without attaching your identity to the Chrome browser you’re using.
The answer is in Settings, under Advanced and then Allow Chrome sign-in. With the toggle switch turned to Off, you can sign in and out of your Google account on the web, but avoid signing into Chrome and linking the browser to your account as well.
4. Turn off annoying notifications
The days of websites being static pages are long gone, and plenty of sites and online apps are going to want to access your webcam and microphone (for video calls perhaps) and your location (for maps and deliveries and so on). These permissions are granted on a site-by-site basis as they’re needed, but you can edit them from a master list too.
On the Settings tab, click Advanced then Site settings. Choose a permission to see which sites have access, then revoke any permissions one by one, or block all requests of a certain type in one fell swoop. The same page lets you control which sites can display notifications on the desktop.
5. Stop certain sites from tracking you
Like other browsers, Chrome lets sites store cookies on your system: These small files keep logs of who you are and your preferences. Cookies might be used to remember your location on a weather site, for example, or to keep you signed in somewhere. Cookies known as third-party cookies can also be used by advertisers to track your browsing across multiple sites (which is why you might see ads for trainers or another specific product everywhere you go).
Head to the Site settings screen (under Advanced from Settings), then click Cookies and site data: From here you can block cookies completely, or just block the more invasive third-party cookies.
If you really want to get extreme, you can toggle the Clear cookies and site data when you quit Chrome switch to On, and the browser effectively gets reset every time you close it down, so you get a clean slate in terms of site logins and targeted ads.
6. Prevent web apps from running in the background
A lot of websites want to keep running in the background even when you shut down Chrome—to keep files syncing to the web, for example, or to alert you the next time you get a tweet.
If you don’t want this to happen, and would rather sites and apps didn’t run when Chrome was closed, open up the Settings tab then click Advanced, and turn the Continue running background apps when Google Chrome is closed toggle switch to Off.
7. Search multiple sites more quickly
Chrome can support multiple search engines and sites very easily, so you can switch between searching Google, Amazon, Wikipedia and other places with just a few taps on the keyboard. To set this up, click Manage search engines from the Settings tab—you can use the search engines already listed or click Add to add a new one.
You’ll see available search engines and sites listed together with what are called keywords: To run a search on this site, type the keyword then the search term into your browser address bar. For example, you could set up Wikipedia with a “wki” keyword for fast access to the Wikipedia search.