Yahoo has posted its financial results for Q1 2015, including a 93 cent year-on-year drop in profits, down to $21m (£14m) from $312m in the same period a year earlier.

The companys overall revenues were up 8.2 per cent year-on-year, to $1.2m, with the biggest growth from mobile. Mobile revenues were up 61 per cent year-on-year to $234m, accounting for 21 per cent of Yahoos traffic-driven revenues.

Display revenues saw Q1 growth for the first time since 2011, hitting $464m – though this was only what Yahoo CEO Marissa Mayer called a “modest” increase of two per cent.

Search revenues, meanwhile, grew 20 per cent year-on-year to $956m, with search volume reaching a five-year high. According to Yahoo, this is driven by the partnership it established with Mozilla last November, which made Yahoo the default search engine for the Firefox browser. However, this deal also contributed to a tripling of the business traffic acquisition costs, to $137m – one of the factors impacting on Yahoos overall profitability.

Search is currently a clear focus for Yahoo, especially in light of last weeks news that the company had renegotiated its long-standing deal with Microsoft, to move away from its previous reliance on Bings technology. Going forward, it appears that Yahoo will be working on a personal assistant-type search product, similar to Siri.

“I really think that there are two types of products that are emerging,” Mayer said on the earnings call. “The classic web search, call it deep reference web search, which is classic Google search, Bing search – and theres a new class of products thats really arising with Cortana, Siri, Google Now. And those products are really heavily differentiated both from each other as well as from the historic legacy products and so thats really where we see an opportunity to play in something thats mobile and as it moves to, for example, the watch and onto television screens and video, we think that theres a really interesting place to play there to help people make better sense of the content they already have access to, content in their mail, using more context to actually provide higher quality results.”