Mozilla shipped Firefox 154 on August 18, adding Startpage to the search engines a desktop user can pick from in five markets: Germany, France, Austria, Switzerland and the Netherlands. The same release routes Smart Window and iOS Quick Answers through Exa.ai, a vendor that sells web-search and crawling infrastructure to AI applications, instead of a system Mozilla built itself. PPC Land reported the rollout Tuesday, drawing on three separate Firefox blog posts published the same day. Both changes are about distribution, not about who wins a search.

Startpage is not a new default. It sits as one item in a search-settings drop-down alongside whatever engine a user already runs, and nothing changes for anyone who leaves the setting alone. Android and iOS versions are coming, Mozilla says, without a release date attached.

The distribution math is the real story for a search team. Firefox held 3.764 percent of global browser share in Cloudflare’s Q3 2025 report, with Chrome at 66.282 percent. A settings-menu addition in five countries will not move auction volume at that scale.

Startpage’s own scale is smaller still. Cloudflare’s Q4 2024 report measured Startpage’s referral share at 0.003 percent, next to Google’s 90.88 percent share of the same measure. The billion annual Startpage searches that Firefox users already ran, a figure cited by Startpage President Stewart Marlborough, measured demand that survived a workaround. A one-click option removes the friction without changing the underlying share.

Exa.ai is a separate layer, not a search-engine choice. The company now handles retrieval behind two Firefox features: the desktop Smart Window and the iOS Quick Answers tool, under a zero-data-retention commitment, with sources shown next to each answer instead of tucked into a citations menu. Mozilla says the choice reflects a preference for buying specialised capability rather than owning a closed AI system, the same logic it applied to the Startpage deal. The company has released no click-through figures for the feature, and it makes no claim about how much traffic the citations send back.

Being listed is not the same as being preselected, a distinction regulators in Europe have spent ten years treating as the one that counts. Separate PPC Land coverage from July 2026 found that European choice-screen rules under the Digital Markets Act added about six million Firefox users across the EU, while Google’s share of search stayed near 90 percent. Brave Search landed a similar slot on Chrome’s engine list, backed by roughly 2.46 billion queries a year, and presence there did not translate into a real shift in usage. Switching friction, not menu placement, decides which number moves next.

For a search team, the near-term task is measurement, not alarm. Track what share of sessions in the five listed countries switch to Startpage, and check whether Smart Window’s citation links show up in Search Console referral data. Firefox’s own share keeps this a niche signal for now. The bigger shift is that Exa.ai also grounds answers for a funding-data platform and a CRM vendor, so the same retrieval index now shapes what gets cited across products no single SEO team controls.

PPC Land reported this story on August 18, 2026, with a byline from Luis Rijo.