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Official operator label

Mozilla Corporation

Official operator label associated with Firefox.

Operator attribution label, not a legal-entity, ownership, control, or market-power determination.

Measured product footprint

Sourced positions by market

1 product · 1 separate market · 2023-2026
Atlas
  1. Browsers2023-2026 · rank #4 · +0.36 pp
Estimated public · Medium confidence
1 official evidence page · Shares retain separate denominators and are never summed.
Record type
Operator attribution labelOfficial product, company, or terms page
Product evidence
1 sourced labelEach attribution keeps its own source URL
Market scope
1 separate definitionNo cross-market share total
Permitted use
Evidence navigationNot corporate-control resolution

Product-market footprint

Keep every connection inspectable.

1 product / 1 market

The diagram traces official operator attributions into source-labeled products and then into measured markets. It does not encode ownership depth or combine unlike shares.

Mozilla Corporation product and measured-market footprint1 officially attributed product labels connect to 1 separately defined markets. Lines encode navigation links, not ownership or combined market power.Operator labelAttributed productsMeasured marketsMozilla Corporationofficial labelFirefox4 share rowsBrowsersUnited States / 2026
Measured market

Browsers

All-platform browser usage

Geography
United States
Products here
1
Coverage
2023-2026
Page-view usage is a public web-analytics proxy rather than a count of browser users or a revenue measure.

Every product share remains inside its stated market definition, geography, denominator, source, and year. Shares from unlike markets are never added, averaged, or treated as one firm-wide market-power measure.

Source-labeled share histories

Read each product inside its own market.

Operator share rows
Attributed product

Firefox

4 sourced rows / 2023-2026
BrowsersUnited States / 20263.8%rank 4
Firefox share history in U.S. browser usageReported shares from 2023 through 2026.2.9%3.8%4.7%2023202420252026
Latest change-0.43 pp
Market HHI3,612

Participant shares belong to separate market definitions, geographies, denominators, and years. Shares must not be summed across products or markets.

Optional exact-record crosswalk

Official records stay attached to their exact organization labels.

No exact policy-record crosswalk is encoded for this operator label.

This is an explicit zero state, not evidence that no public record exists. Search the enforcement atlas separately before drawing a conclusion.

Attribution evidence custody

Inspect every official product connection.

Official company page / high confidence

Firefox

Mozilla's official about page states that Mozilla Corporation makes Firefox.

Accessed Jul 18, 2026. Official operator attribution only; not a complete ownership or control record.

Mozilla

Nearest evidence profiles

Compare operators with overlapping measured markets.

Operator evidence guardrail

This dossier joins official operator-attribution pages, source-labeled product shares, and optional exact policy-record crosswalks for navigation. It does not resolve legal-entity identity, ownership, control, affiliate status, market power, liability, or causation.

Read evidence standard