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Browser Extensions · head to head

Capital One Shopping vs uBlock Origin

Capital One Shopping logo

Capital One Shopping

Browser Extensions

Automatically save while you shop

From
Free
Rated
-
Full reviewWebsite
uBlock Origin logo

uBlock Origin

Browser Extensions

Free, open-source ad content blocker

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Capital One Shopping limited to coupon and price comparison features, no true cashback rewards; uBlock Origin cNAME uncloaking of third-party trackers disguised as first-party is only available on Firefox, because the required DNS API does not exist in Chromium
  • They diverge on capability: Capital One Shopping covers Price comparison, uBlock Origin covers Ad blocking.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Capital One Shopping and uBlock Origin actually diverge.

Attributes where Capital One Shopping and uBlock Origin differ
AttributeCapital One ShoppinguBlock Origin
Pricing modelUnknownfree
PlatformsWeb, iOS, AndroidChrome, Firefox, Edge, Opera

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Browser Extensions), founded (2014).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Capital One Shopping

  • Price comparison
  • Coupon finder
  • Price tracking
  • Credits rewards
  • Safari support

Only in uBlock Origin

  • Ad blocking
  • Tracker blocking
  • Malware domain blocking
  • Custom filter lists
  • Opera support

Both cover

  • Chrome support
  • Firefox support
  • Edge support

What people use each for

The jobs each tool is most often brought in to do.

Capital One Shopping

  • Automatically applying coupon codes at checkoutnot uBlock Origin
  • Tracking price drops on itemsnot uBlock Origin
  • Earning category-based cashback on purchasesnot uBlock Origin

uBlock Origin

  • Ad and tracker blocking in web browsersnot Capital One Shopping
  • Privacy protection while browsing the webnot Capital One Shopping
  • Reducing bandwidth usage by blocking adsnot Capital One Shopping
  • Users seeking open-source browser extensionsnot Capital One Shopping

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Capital One Shopping

  • Limited to coupon and price comparison features, no true cashback rewards
  • Dependent on retailers offering coupons or price matching
  • Browser extension adds processing overhead to shopping sessions

uBlock Origin

  • CNAME uncloaking of third-party trackers disguised as first-party is only available on Firefox, because the required DNS API does not exist in Chromium
  • HTML filtering of response bodies requires the webRequest.filterResponseData API, which is only available in Firefox
  • On Chromium-based browsers uBO is not reliably ready at browser launch, so tracker and advertisement payloads can reach already-open tabs before filtering starts
  • Pre-fetch blocking is not reliable on Chromium-based browsers because they give websites precedence over user settings
  • The Chromium build does not use the WebAssembly filtering code paths, because the extra manifest permission would create friction publishing to the Chrome Web Store
  • LZ4 storage compression is Firefox only, and on Chromium in incognito mode IndexedDB resets, so uBO launches with out-of-date filter lists

Pricing, plan by plan

Capital One Shopping

Free

No published plan breakdown. See the Capital One Shopping review.

uBlock Origin

Free
  • FreeFree
    • Ad blocking
    • Tracker blocking
    • Custom filter lists

Which should you pick?

Choose Capital One Shopping if

  • You need price comparison.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want coupon finder.
Capital One Shopping review

Choose uBlock Origin if

  • You need ad blocking.
  • You want to start without paying.
  • You work on Chrome, Firefox, Edge, Opera.
  • You also want tracker blocking.
uBlock Origin review

Questions people ask

Is Capital One Shopping or uBlock Origin better?
Neither clearly leads. Capital One Shopping starts at Free and uBlock Origin at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Capital One Shopping or uBlock Origin?
Capital One Shopping starts at Free and uBlock Origin at Free.
Does Capital One Shopping or uBlock Origin run on more platforms?
Capital One Shopping runs on Web, iOS, Android. uBlock Origin runs on Chrome, Firefox, Edge, Opera.
Can I use Capital One Shopping for free?
Both have a free tier, so you can try either at no cost before committing.
What is Capital One Shopping best used for?
Capital One Shopping is most often used for automatically applying coupon codes at checkout, tracking price drops on items, earning category-based cashback on purchases. Of those, automatically applying coupon codes at checkout and tracking price drops on items are not what uBlock Origin is typically brought in for.
What can Capital One Shopping do that uBlock Origin cannot?
Capital One Shopping covers Price comparison, Coupon finder, Price tracking, Credits rewards. uBlock Origin covers Ad blocking, Tracker blocking, Malware domain blocking, Custom filter lists. Both handle Chrome support, Firefox support, Edge support.

Answered from the vendors’ own pages

Capital One Shopping: Is Capital One Shopping free?

Yes. Capital One Shopping is 100% free to install and use on desktop or mobile. There are no fees or charges.

Source
uBlock Origin: How much does uBlock Origin cost?

uBlock Origin is completely free and open-source software with no licensing fees, subscriptions, or commercial restrictions.

Source
Capital One Shopping: Does Capital One Shopping require a Capital One account?

No. Capital One Shopping is free for everyone, including people who are not Capital One customers.

Source
uBlock Origin: Is uBlock Origin open source?

Yes, uBlock Origin is distributed under the GPL-3.0 License with source code publicly available on GitHub. The project encourages community review and contribution.

Source
Capital One Shopping: What platforms does Capital One Shopping support?

Capital One Shopping is available as a browser extension for desktop browsers and as a mobile app for iOS and Android.

uBlock Origin: Does uBlock Origin accept donations?

No, uBlock Origin explicitly does not accept donations. The project instead encourages users to support the developers maintaining the filter lists that power the extension.

Source
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