Exhibit 99.1 Opera Reports Fourth Quarter Ahead of Expectations, Concluding a Year of Strong Growth and Margin Expansion Fourth quarter revenue of $113.0 million, +17% YoY growth and at the top of $110-113 million guidance range Fourth quarter adjusted EBITDA at $27.8 million, a 25% margin and exceeding the $22-24 million guidance range 2023 expectations lifted quarter by quarter, full-year revenue concluded at $397 million or 20% annual growth, with adjusted EBITDA at $94 million or 38% annual growth follo ...