10 Hacks Every Firefox User Should Know

I've been using Firefox as my default browser for over two decades now, and during this time, I've learned a thing or two about making the most of its many features. There are some features that are turned on by default that I would recommend turning off, and some simple tweaks you can make that will greatly enhance your privacy and security. Here are all the Firefox hacks I use to make my browsing experience better, so you can try them yourself.

Make the home screen truly yours

Firefox pushes the Firefox Home screen as the default whenever you open a new tab. There's nothing particularly wrong about that, but it does come with some unnecessary sponsored content, which you can get rid of. To do this, go to the Firefox settings, by clicking the three-lines icon in the top-right corner of an open Firefox window window and selecting Settings. Now, click the Home tab in the left pane and scroll to Firefox Home Content. Disable Support Firefox to remove sponsored content, and toss in remove Shortcuts if you prefer a cleaner look over quick links to commonly visited sites. My home screen just has Web Search enabled, which looks good with a nice wallpaper.

Use the built-in task manager

If your Firefox is being slow or unresponsive, you can use the built-in task manager to identify which tabs or extensions are causing a slowdown. This feature is also great for periodically monitoring the browser's performance. You can access it by clicking the three-lines icon in the top-right and navigating to More tools > Task Manager. Alternatively, you can open Firefox and press Shift-Esc, or type about:processes in the address bar.

Once the task manager is open, you can use it just as you'd use the task manager on your PC or Mac. It lets you quickly close unresponsive tabs, disable all extensions in one go, and monitor RAM and CPU usage, too.

Firefox has a handy screenshot tool

You can open any webpage in Firefox and use the built-in screenshot tool to take a quick picture of the webpage you're on. This is the fastest way to take a full-page screenshot without throwing in the rest of your screen, or to capture just a small section of a webpage. Just right-click anywhere on a webpage and select Take Screenshot. You'll see both options (capture a selected part of the page, or the full page), and you can pick one to take a quick screenshot.

Disable unwanted AI features

Like every other app in the world, Firefox has added AI features I never asked for to the browser. One of these appears in the context menu, so you can easily remove it from there. Right-click any webpage, and in the Ask AI Chatbot section, select Remove AI Chatbot to get rid of this feature. You can also go to Firefox settings > General > Tabs and disable Use AI to suggest tabs and a name for tab groups.

Stop Firefox's data collection (and generally protect your privacy)

Unfortunately, Firefox collects a lot of data about your browsing habits by default, and I highly recommend disabling this to enhance your privacy. Go to Firefox settings > Privacy & Security > Firefox Data Collection, and disable every option under this section.

While you're at it, let's keep people who aren't Firefox from seeing your browsing data, too. Firefox can automatically switch to a more secure HTTPS page if you accidentally open an unencrypted HTTP link (these are mostly being phased out, but you might stumble upon them every once in a while). Under Firefox settings > Privacy & Security > HTTPS-Only Mode, just toggle on Enable HTTPS-Only Mode in all windows. The browser will handle the rest.

You can also encrypt your web traffic further by enabling DNS over HTTPS, which is below the option I just mentioned. On the same page, in the section titled Enable DNS over HTTPS using:, scroll down a bit and choose Increased Protection or Max Protection (Max Protection is a bit stricter, but can break some websites, so I only recommend it for power users). The default DNS provider is Cloudflare, but you can also use NextDNS or a custom DNS if you wish. This feature makes it harder for third-parties to see which sites you're visiting.

For even more privacy, try out advanced about:config tweaks.

Don't let sites use your location

Whenever I visit a website these days, it feels like I'm being bombarded with permissions pop-ups asking me if they can send me notifications, use my location, and who knows what else. Firefox lets you easily disable most of these. Go to Firefox settings > Privacy & Security > Permissions. Click Location and select Block new requests to access your location. While you're there, you can click through the available options and turn on other blocks, too. You can use these to block notification requests and autoplaying videos. Some sites may still use special tricks to bypass autoplay blocks, but it doesn't hurt to make them work for it.

Install a few good extensions (but don't overdo it)

A Firefox installation just isn't complete without a few good browser extensions. I keep seeing fun new extensions I want to install, but having too many of these can slow your browser down. So, it's best to install a few good ones and remove any redundant extensions. To know where to start, check out my list of the best Firefox extensions.

Use a good ad blocker

There are many pros and a few cons to using an adblocker, but it's a recommended tool these days, both to protect your privacy and to stay safe from scams. A good ad blocker will remove unwanted junk from webpages, block trackers, and speed up browsing. I've been using uBlock Origin for a decade now, and it's still the one I recommend most to everyone who asks. Once the extension is installed, you should tweak a few advanced uBlock Origin settings to make the most of it.

Consider using vertical tabs

This is a bit of a controversial take, but it works for me, so here it goes: Vertical tabs are better than horizontal ones. I really like my browser window to occupy as much space as possible, and using horizontal tabs goes against that idea. Once I made the switch to vertical tabs, my browser's window just started looking a lot cleaner. On my Mac, I still use horizontal tabs, but that's because I keep the dock on the left side of the screen. On my Windows PC, however, vertical tabs just look so much nicer. If you want to try making the switch, go to Firefox settings > General > Browser Layout. Pick Vertical Tabs and enjoy.

Try Firefox Labs to see what the future looks like

No, this is not a time travel tip. Firefox Labs is where the browser releases experimental new features before making them public (or canning them). If you're fine with being a guinea pig, Firefox Labs is your chance to try these experimental features without downloading the browser's full beta release. You can enable these features by going to Firefox settings > Firefox Labs.