Exhibit 99.1 Opera Reports Both Revenue and Adjusted EBITDA Above Guidance in its First Quarter 2023 Results Ninth consecutive quarter of 20+% revenue growth, exceeding the high end of previously issued guidance on both revenue and adjusted EBITDA Q1 revenue grew 22% year-over-year, with an adjusted EBITDA margin of 25% Opera introduced its first generative AI features directly into the browser Company raises the midpoint of revenue guidance and adjusted EBITDA expectations for 2023 OSLO, Norway, April 27, ...