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Reviewed comparison · verified 2026-09-16

DuckDuckGo BrowservsFirefox Focusin 2026

Both block by default and ship no extensions; DuckDuckGo works as a primary browser, while Focus is built to be a disposable second one.

33 documented facts compared 13 differ 20 identical
BrowserPedia mascot comparing browsers on balance scale

Head-to-head: DuckDuckGo Browser versus Firefox Focus

DuckDuckGo Browser

DuckDuckGo · United States

Firefox Focus

Mozilla · United States

DuckDuckGo Browser: A privacy-first browser that blocks trackers, ads, and cookie pop-ups by default and deliberately ships no third-party extension store.

Firefox Focus: Mozilla's deliberately minimal mobile browser that blocks trackers by default and is built around erasing the session rather than storing it.

Key facts

  • Yes
  • Partial
  • No
System WebView
Engine
Gecko
Built in
Blocks trackers Same
Built in
Built in
Anti-fingerprinting Same
Built in
Built in
Native ad blocking Same
Built in
Unsupported
Chrome Web Store Same
Unsupported
Built in
Sync across devices
Unavailable
DuckDuckGo
Default search
Configurable
macWinLinAndiOS
Platforms 4 vs 2 of 5
macWinLinAndiOS
4
Privacy & tracking /4
3
0
Extensions /4
0
1
Workflow & tabs /11
0
4
Platforms /5
2

A count of the capabilities each record documents in that category - half a point for partial support. It is a shape, not a score: BrowserPedia does not rank browsers.

DuckDuckGo Browser profile Full records Firefox Focus profile

DuckDuckGo Browser and Firefox Focus at a glance

Documented capabilities per area - a count, not a rating

  • DuckDuckGo Browser
  • Firefox Focus
AI7/9 · 0/9

Each spoke is the share of that area's documented capabilities; a partial counts half. Hover or focus an area for the count.

Select an underlined area to jump to its rows in the fact table. AI facts are listed on each browser's profile.

Where the two sit

On AI and platforms, the two areas where this pair differs most. Grey dots are every other browser.

Official platforms (of 5)

AI features (of 9)

  • DuckDuckGo Browser7, 4
  • Firefox Focus0, 2
Open the full browser map

What actually differs

See all 33 facts

  • Built-in VPN or proxy

    Only in DuckDuckGo Browser · Privacy & tracking

  • Sync across devices

    Only in DuckDuckGo Browser · Workflow & tabs

  • macOS

    Only in DuckDuckGo Browser · Platforms

  • Windows

    Only in DuckDuckGo Browser · Platforms

DuckDuckGo Browser vs Firefox Focus: every documented fact

Each row is a field from the two browser records. Open a row to read the documented note and its source. Categorical rows carry no colour, because one engine is not better than another.

33 documented facts · 13 differ · 20 identical

Fact
DuckDuckGo Browser
Firefox Focus

Privacy & tracking

built in
4/4
3/4

Extensions

built in
0/4
0/4

Workflow & tabs

built in
1/11
0/11

Platforms

built in
4/5
2/5

Foundation

DuckDuckGo Browser vs Firefox Focus: common questions

Do DuckDuckGo Browser and Firefox Focus use the same browser engine?
No. DuckDuckGo Browser renders with Webview and Firefox Focus renders with Gecko. That means they can differ on site compatibility and on which extension ecosystem they support.
Which blocks trackers by default, DuckDuckGo Browser or Firefox Focus?
Both DuckDuckGo Browser and Firefox Focus document tracker blocking enabled by default.
Can DuckDuckGo Browser and Firefox Focus run Chrome extensions?
Neither DuckDuckGo Browser nor Firefox Focus documents Chrome Web Store support.
Does DuckDuckGo Browser or Firefox Focus have vertical tabs?
Neither DuckDuckGo Browser nor Firefox Focus documents built-in vertical tabs.
What platforms do DuckDuckGo Browser and Firefox Focus run on?
DuckDuckGo Browser is documented on macOS, Windows, Android and iOS. Firefox Focus is documented on Android and iOS.
Is DuckDuckGo Browser or Firefox Focus still actively developed?
DuckDuckGo Browser is active and Firefox Focus is active, as of the profile verification dates on this page.

Evidence sources

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Best privacy browsers A ranked shortlist rather than a single pair

BrowserPedia does not rank browsers by a universal score. The verdict is an editorial interpretation of the sourced facts above.

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