Discover the hidden features of Mozilla Firefox

Mozilla Firefox remains one of the most popular web browsers, known for its speed, security, and flexibility. While many of us use it every day, there are many hidden features that can significantly improve our browsing experience. In this article, we will discover the best hidden features of Firefox so that you can get the most out of this powerful tool.

1. Reading Mode for Clean Content

Firefox's reading mode removes all ads, menus, and unnecessary elements from a page, leaving only the text and essential images for a clean reading experience.

How to use it:
1. Open any article or page with text
2. Look for the book icon in the address bar
3. Click and enjoy a clean reading experience

2. Real-Time Tracking Protection

Firefox has built-in protection that prevents websites and companies from tracking you while you browse the web. This feature is active even in regular browsing.

How to check the settings:
1. Go to Settings → Privacy and Security
2. Select your preferred protection level (Standard or Strict)
3. See in real time what is blocked by the shield icon in the address bar

3. Floating Video Window (Picture-in-Picture)

This great feature allows you to watch videos in a small window that always stays in the foreground while you do other tasks.

How to activate it:
1. Start a video on any website (YouTube, Netflix, etc.)
2. Click on the blue icon that appears in the video
3. The video will appear in a separate window that you can move around

4. Activity Separation with Containers

Containers are a unique feature that allows you to segregate your online activity. You can have different accounts logged into the same website at the same time.

How to use them:
1. Install the "Firefox Multi-Account Containers" extension
2. Create different containers (e.g. Work, Personal, Shopping)
3. Open tabs in specific containers for complete separation

5. Built-in Snapshot Tool

Firefox has a very useful screenshot tool that can save entire pages or specific sections.

How to use it:
1. Right-click anywhere on the page
2. Select "Take Screenshot"
3. Choose whether you want part of the page or the entire page
4. Save the screenshot to your computer

6. Task Manager for Performance Improvement

Firefox has a built-in task manager that shows you which tabs and extensions are consuming the most resources.

How to access:
1. Enter about: performance in the address bar
2. See which tabs are using the most memory and processor
3. Close the tabs that are burdening your computer

7. Sync across all your devices

With a Firefox account, you can have your bookmarks, history, passwords, and open tabs across all your devices.

How to set it up:
1. Create a Firefox Account or sign in
2. Go to Settings → Sync
3. Choose what you want to sync
4. Sign in to the same account on other devices

8. Sending Tabs to Other Devices

You can easily send an open tab from your computer to your mobile or vice versa.

How to do it:
1. Right-click on the tab you want to send
2. Select "Send tab to device"
3. Choose the target device

9. Built-in Pocket Mode

Pocket lets you save articles and pages to read later, even without an internet connection.

How to use it:
1. Click the Pocket icon next to the address bar
2. Sign in with a Pocket account
3. Save pages with one click for future reading

10. Useful Keyboard Shortcuts

Firefox supports many shortcuts that make browsing faster and more efficient.

The most useful shortcuts:
• Ctrl+L: Goes to the address bar
• Ctrl+Shift+T: Opens the last closed tab.
• Ctrl+Tab: Switch between tabs
• Ctrl + Shift + Delete: Open data clearing menu
• F12: Open developer tools

11. Suspending Inactive Tabs

Firefox can suspend tabs you're not using to save memory and battery.

How to activate it:
1. Enter about: config in the address bar
2. Search browser.tabs.unloadOnLowMemory
3. Double-click to set it to true

12. Built-in Password Manager

Firefox has a secure password manager that saves and automatically fills in your login information.

How to manage it:
1. Go to Settings → Privacy and Security
2. Click on the "Passwords" section
3. View, edit or delete saved codes

13. Advanced Settings with about:config

The about:config page gives you access to hundreds of advanced settings that can improve performance and security.

Caution: These settings are intended for advanced users. Changes may affect the stability of Firefox.

Useful settings:
• privacy.resist Fingerprinting: Increases privacy protection
• browser.tabs.closeWindowWithLastTab: Prevents closing the window with the last tab
• network.http.http3.enabled: Enables the faster HTTP/3 protocol

14. Privacy and Security Settings

Firefox offers extensive privacy options. You can customize the settings to suit your needs.

Basic privacy settings:
1. Go to Settings → Privacy and Security
2. Select the protection level (Standard, Strict or Custom)
3. Set up cookie and site data management
4. Enable malware protection

15. Performance Optimization

You can improve Firefox speed with some simple settings and practices.

Tips for better performance:
• Keep a few tabs open at once
• Clear your history and cache regularly
• Disable extensions you don't use
• Update Firefox regularly
• Use the tool about: performance for monitoring

Mozilla Firefox is much more than just a web browser. With these hidden features and settings, you can turn it into a highly customized tool that meets your specific needs. From privacy protection to performance optimization, Firefox offers solutions for every type of user. The key is to experiment with these features and find the ones that best suit the way you use the internet. Start with the simplest features and gradually move on to the more advanced ones.

Note: Make sure to keep Firefox updated to the latest version to get access to all the new features, security improvements, and bug fixes!

✍️ Evangelos
Its creator LoveForTechnology.net — an independent and trusted source for tech guides, tools, and practical solutions. Each article is based on personal testing, evidence-based research, and care for the average user. Here, technology is presented simply and clearly.

Monday 8 September 2025