Document And Entity Information |
12 Months Ended |
|---|---|
|
Dec. 31, 2025
shares
| |
| Document Information [Line Items] | |
| Entity Central Index Key | 0001737450 |
| Entity Registrant Name | Opera Ltd |
| Amendment Flag | false |
| Current Fiscal Year End Date | --12-31 |
| Document Fiscal Period Focus | FY |
| Document Fiscal Year Focus | 2025 |
| Document Type | 20-F |
| Document Registration Statement | false |
| Document Annual Report | true |
| Document Period End Date | Dec. 31, 2025 |
| Document Transition Report | false |
| Document Shell Company Report | false |
| Entity File Number | 001-38588 |
| Entity Incorporation, State or Country Code | E9 |
| Entity Address, Address Line One | Vitaminveien 4 |
| Entity Address, Postal Zip Code | 0485 |
| Entity Address, City or Town | Oslo |
| Entity Address, Country | NO |
| Title of 12(b) Security | American Depositary Shares, each representing one ordinary share, par value $0.0002 per share |
| Trading Symbol | OPRA |
| Security Exchange Name | NASDAQ |
| Entity Common Stock, Shares Outstanding | 89,648,056 |
| Entity Well-known Seasoned Issuer | No |
| Entity Voluntary Filers | No |
| Entity Current Reporting Status | Yes |
| Entity Interactive Data Current | Yes |
| Entity Filer Category | Accelerated Filer |
| Entity Emerging Growth Company | false |
| ICFR Auditor Attestation Flag | true |
| Document Financial Statement Error Correction [Flag] | false |
| Document Accounting Standard | International Financial Reporting Standards |
| Entity Shell Company | false |
| Auditor Firm ID | 1363 |
| Auditor Name | KPMG AS |
| Auditor Location | Oslo, Norway |
| Auditor Opinion [Text Block] | Opinion on the Consolidated Financial Statements We have audited the accompanying consolidated statements of financial position of Opera Limited and subsidiaries (the Company) as of December 31, 2025 and 2024, the related consolidated statements of operations, comprehensive income, changes in equity, and cash flows for each of the years in the three-year period ended December 31, 2025, and the related notes (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2025 and 2024, and the results of its operations and its cash flows for each of the years in the three-year period ended December 31, 2025, in conformity with IFRS Accounting Standards as issued by the International Accounting Standards Board (IASB). We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission, and our report dated March 27, 2026 expressed an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting. |
| Business Contact [Member] | |
| Document Information [Line Items] | |
| Entity Address, Address Line One | Vitaminveien 4 |
| Entity Address, Postal Zip Code | 0485 |
| Entity Address, City or Town | Oslo |
| Entity Address, Country | NO |
| Contact Personnel Name | Lin Song, Chief Executive Officer |
| City Area Code | 47 |
| Local Phone Number | 2369-2400 |