Technology · San Francisco, CA
The Mozilla Corporation is a wholly owned taxable subsidiary of the Mozilla Foundation that coordinates and integrates the development of Internet-related applications such as the Firefox web browser, by a global community of open-source developers, some of whom are employed by the corporation itself.
The saved snapshot for Mozilla records 69 roles as open (latest observation: 18 September 2026). It can include roles since marked removed. In that snapshot, 17% have been listed 90 days or longer; across the 1,162 companies we track, the median is 13.9%. In the role records we currently hold, its longest-open role, Staff Data Scientist, Ads, has been posted for 411 days. Half of its dated active postings, excluding likely evergreen listings, have been listed 26 days or longer. 52 historical posting records, including active and inactive roles, carry an employer posting date on or after the cutoff 30 days ago; likely evergreen listings are excluded.
Our role records for Mozilla include 69 open postings from its careers site. Mozilla's median posting has been open 26 days; the median across all companies we track is 30 days. Its oldest open posting has been up 411 days. How we measure.
Every age above is counted to today. Mozilla's board was last read .
These figures use role observations, which may be newer than the Overview snapshot and may include an incomplete collection. Only records marked active are included, with likely evergreen listings excluded. Posting ages use employer-dated records; undated active records contribute to the count only.
Posting activity
Snapshot's latest observation: September 18, 2026 · Global postings from Mozilla's job board
These figures stay in place until the snapshot is refreshed and can include roles since marked removed. An incomplete collection can leave them behind newer role records. Snapshots can also contain partial updates, so the observation date is not a completion date.
Age distribution
Tracked daily from the company's public job board. Not affiliated with or endorsed by the company listed.
Longest-open roles
From role records, which may be newer than the snapshot above.
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These records update separately from the Overview snapshot and may include an incomplete collection. Counts can also differ because the snapshot's open-role count excludes likely evergreen listings and can retain roles since marked removed. Individual posting ages use employer-supplied dates only; records without one show “Date unavailable.”
Showing 51–69 of 69 roles
Role observations from Mozilla's own job board · global postings.
Active role records, by age
These figures use Mozilla's records marked active, excluding likely evergreen listings. Undated records count as active but do not contribute to posting ages. Role observations may be incomplete; these are not hiring or time-to-fill measures.
Historical records by posting-date cutoff
Includes active and inactive records with employer posting dates on or after each cutoff, excluding likely evergreen listings. These are historical date totals, not current openings or first appearances. Dates have no upper cutoff, so future-dated records can be included.
Historical records by posting month
Active and inactive records grouped by employer posting month; undated and likely evergreen records are excluded. Muted bars predate tracking (July 23, 2026) and include only records later observed.
Recorded appearance and removal events
Events recorded by the tracker, grouped by event month. These are not posting-date totals or a count of current openings; one role can have multiple events. Reappearance events are not included in these totals. The event history may be incomplete.
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Role observations from Mozilla's own job board · global postings.
Snapshot's latest observation: September 18, 2026.
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