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Browser Extensions · head to head

ColorZilla vs FireMonkey

ColorZilla logo

ColorZilla

Browser Extensions

Advanced color picker and eyedropper

From
Free
Rated
-
Full reviewWebsite
FireMonkey logo

FireMonkey

Browser Extensions

User scripts and user styles in one Firefox extension

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: ColorZilla no pricing information published on main website or pricing page, making cost structure unclear to potential users; FireMonkey firefox only, and requires a recent one: version 93 on desktop, 113 on Android.
  • They diverge on capability: ColorZilla covers Color picker, FireMonkey covers Scripts and styles together.
  • Prices and features above were last checked on 15 September 2026.

Where they differ

Only the attributes on which ColorZilla and FireMonkey actually diverge.

Attributes where ColorZilla and FireMonkey differ
AttributeColorZillaFireMonkey
Pricing modelfreeopen-source
PlatformsChrome, Firefox, EdgeFirefox
Founded2007Unknown

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

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 ColorZilla

  • Color picker
  • Eyedropper tool
  • Gradient generator
  • Palette analyzer
  • Chrome support
  • Firefox support
  • Edge support

Only in FireMonkey

  • Scripts and styles together
  • Monaco editor with ESLint
  • Unlimited client-side storage
  • Global injection
  • Notifications and clipboard
  • Firefox for Android

What people use each for

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

ColorZilla

  • Extracting exact color values from website designs instantlynot FireMonkey
  • Generating CSS gradients without returning to Photoshopnot FireMonkey
  • Analyzing and converting visual color palettes to codenot FireMonkey

FireMonkey

  • Running user scripts and user styles without two separate extensionsnot ColorZilla
  • Restyling sites with CSS alongside scripted behaviour changesnot ColorZilla
  • Editing scripts in a full editor inside the browsernot ColorZilla
  • Injecting CSS globally across every sitenot ColorZilla
  • Managing a mixed library of scripts and styles from one dashboardnot ColorZilla

Where each one falls short

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

ColorZilla

  • No pricing information published on main website or pricing page, making cost structure unclear to potential users
  • No free tier or trial option clearly advertised, limiting ability to test features before purchase

FireMonkey

  • Firefox only, and requires a recent one: version 93 on desktop, 113 on Android.
  • Not a drop-in replacement for Greasemonkey, Tampermonkey or Stylus. The project says so itself, so an existing library may need adjusting.
  • A much smaller user base than Tampermonkey or Violentmonkey, which means fewer people have hit the bug you are about to hit.
  • No Chrome, Edge or Safari build, so it cannot be the answer for anyone working across browsers.
  • Combining scripts and styles in one extension also combines the blast radius: one extension with permission to inject both into every page.

Pricing, plan by plan

ColorZilla

Free
  • FreeFree
    • Color picker
    • Eyedropper
    • Gradient generator

FireMonkey

Free
  • Open sourceFree
    • MPL-2.0 licensed
    • Unlimited scripts and styles
    • No account required

Which should you pick?

Choose ColorZilla if

  • You need color picker.
  • You want to start without paying.
  • You work on Chrome, Firefox, Edge.
  • You also want eyedropper tool.
ColorZilla review

Choose FireMonkey if

  • You need scripts and styles together.
  • You want to start without paying.
  • You work on Firefox.
  • You also want monaco editor with eslint.
FireMonkey review

Questions people ask

Is ColorZilla or FireMonkey better?
Neither clearly leads. ColorZilla starts at Free and FireMonkey at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ColorZilla or FireMonkey?
ColorZilla starts at Free and FireMonkey at Free.
Does ColorZilla or FireMonkey run on more platforms?
ColorZilla runs on Chrome, Firefox, Edge. FireMonkey runs on Firefox.
Can I use ColorZilla for free?
Both have a free tier, so you can try either at no cost before committing.
What is ColorZilla best used for?
ColorZilla is most often used for extracting exact color values from website designs instantly, generating css gradients without returning to photoshop, analyzing and converting visual color palettes to code. Of those, extracting exact color values from website designs instantly and generating css gradients without returning to photoshop are not what FireMonkey is typically brought in for.
What can ColorZilla do that FireMonkey cannot?
ColorZilla covers Color picker, Eyedropper tool, Gradient generator, Palette analyzer. FireMonkey covers Scripts and styles together, Monaco editor with ESLint, Unlimited client-side storage, Global injection.

Answered from the vendors’ own pages

ColorZilla: How much does ColorZilla cost?

ColorZilla does not publish pricing on its website. The site describes browser extensions for Firefox and Chrome, plus an online CSS gradient editor, but cost information is not available. Users must contact the company directly or check browser extension marketplaces for availability and cost details.

Source
FireMonkey: What makes FireMonkey different from Violentmonkey?

It manages user styles as well as user scripts. The usual arrangement is a script manager plus a separate style manager such as Stylus; FireMonkey replaces both with one extension.

Source
ColorZilla: Is ColorZilla free to use?

The website does not specify whether ColorZilla tools are free or paid. While browser extensions are often offered free in extension stores, the online tools and their pricing model are not documented on the main site.

Source
FireMonkey: Which browsers does FireMonkey support?

Firefox only. Desktop requires Firefox 93 or later and Android requires 113, with an API minimum of 102.

Source
FireMonkey: Is FireMonkey open source?

Yes, under the MPL-2.0 licence.

Source
FireMonkey: Will my existing Tampermonkey scripts work?

Not necessarily. The project states that while it shares functionality with Greasemonkey, Tampermonkey and Stylus, there are differences, so scripts and styles written for those may need adjusting.

Source
FireMonkey: What editor does FireMonkey use?

Current versions use the Monaco editor with ESLint, the same editor component that powers VS Code.

Source
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