7 Best Firefox Add-ons for Power Browsing (2026)
The right add-ons turn Firefox into a power tool. In 2009 this guest post picked Advanced Dork, Autocopy, Smart Bookmarks Bar, AutoPager and History Submenus. None of those work in today’s Firefox, which moved to a new add-on system in 2017. Here are the best Firefox add-ons for power browsing in 2026: tools that save time, cut clutter and protect your privacy.
Quick answer: The best Firefox add-ons for power users are uBlock Origin (ad and tracker blocking), Multi-Account Containers (separate logins in tabs), Tree Style Tab (vertical tab tree), Bitwarden (passwords), Dark Reader (dark mode for every site), OneTab (save tab clutter) and Auto Tab Discard (free memory). Firefox also has built-in vertical tabs, tab groups, Reader View and Picture-in-Picture.
Table of Contents
Best Firefox add-ons for power browsing
1. uBlock Origin
uBlock Origin blocks ads, trackers and malicious sites with very little memory use. Firefox still fully supports it.
2. Firefox Multi-Account Containers
Multi-Account Containers keeps work, personal and shopping sites in colour-coded containers, so you can stay logged in to two accounts at once.
3. Tree Style Tab
Tree Style Tab shows tabs as a tree in the sidebar, grouping pages you opened from each other.
4. Bitwarden
Bitwarden is a free, open-source password manager that fills logins and generates strong passwords.
5. Dark Reader
Dark Reader adds a dark theme to every website, easier on the eyes at night.
6. OneTab
OneTab collapses all open tabs into a single list you can restore later.
7. Auto Tab Discard
Auto Tab Discard unloads inactive tabs to save memory and battery.
Built-in Firefox power features
- Vertical tabs and tab groups in recent versions (Settings > General > Browser layout).
- Reader View (F9 on Windows) for clutter-free articles.
- Picture-in-Picture to keep videos playing while you browse.
- Quick find: press / to search page text, or ‘ for links only.
- Search shortcuts: type @bookmarks, @tabs or @history in the address bar.
- Screenshots: right-click any page and choose Take Screenshot.
What replaced the 2009 picks
- Advanced Dork: use Google search operators directly; see our Google power searching tips.
- AutoPager: many sites now load more results as you scroll.
- History Submenus: Firefox’s Library (Ctrl+Shift+H) groups history by date.
Designers should also see our Firefox add-ons for web designers.
Originally written by guest author Sumesh of TechZilo.com. Updated for 2026 by QuickOnlineTips.
FAQ
Does uBlock Origin still work in Firefox?
Yes, Firefox fully supports uBlock Origin.
Do add-ons slow down Firefox?
Each add-on uses some resources. Install only the ones you use and remove the rest.
Are Firefox add-ons safe?
Prefer “Recommended” add-ons on addons.mozilla.org, which Mozilla reviews, and check permissions.
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I have not completely stuck to the detail here in the article about 5 Must Have Firefox Addons for Power Browsing. I guess I understand what you are expressing. I maybe understand what you are stating, but you confused me in the end. An article a day keeps the comments arriving.
Leah as a supporting character, but the main character? ,
I dont know what wrong with my Firefox. Every time that I open lots of website or open abit long, it always gets an Error to close the browser.
Anyone got this experience?and how to solve?
Thanks!
very very very nice
Some very good plugins that I have never used before! Thanks for the list.