Mozilla’s Gecko engine family is currently facing serious financial pressure due to the organisation’s heavy reliance on search partnership revenue. Approximately 85 percent of Mozilla’s funding comes from Google, which pays to remain the default search engine in Firefox. This relationship became a central issue during recent antitrust proceedings in the United States, where Mozilla’s Chief Financial Officer testified that the loss of this revenue could force widespread cutbacks and potentially make Firefox unsustainable (U.S. Department of Justice v. Google LLC, 2024).
The threat to Gecko has raised broader concerns. Mozilla President Mark Surman noted that Gecko is one of only three major browser engines in active use today, along with Google’s Blink and Apple’s WebKit. Surman warned that the failure of Gecko would leave the web increasingly controlled by a single browser engine family, undermining competition and innovation (Surman, 2024).
Mozilla has attempted to reduce its reliance on Google by exploring partnerships with other search providers such as Bing. However, internal analyses found that Bing produced significantly less revenue per user than Google. A previous partnership with Yahoo proved unpopular with users and contributed to a decline in Firefox’s market share before the agreement was ultimately cancelled (Brinkmann, 2017).
In summary, Gecko’s future remains uncertain. Funding instability within Mozilla has implications not only for Firefox but also for the health of the broader web ecosystem. If Gecko development stalls or collapses, the resulting loss of engine diversity may reduce user choice, weaken privacy protections, and concentrate influence in the hands of dominant commercial entities.
References
Brinkmann, M. (2017, January 24). Mozilla’s Yahoo search deal may have cost Firefox users. Ghacks Technology News.
Surman, M. (2024, April). Mozilla’s response to proposed remedies in the United States v. Google case. Mozilla Blog.
U.S. Department of Justice v. Google LLC, Case 1:20-cv-03010 (D.D.C. 2024). Testimony of Eric Muhlheim, Chief Financial Officer, Mozilla.