It's important to clarify:
If you already have it: via opera://extensions and run a full antivirus scan.
Use a dedicated desktop downloader like yt-dlp or 4K Video Downloader . They are free, safe, and work with Opera just by copying and pasting video URLs.
| Tool | Type | Why it's better for Opera | | :--- | :--- | :--- | | (command line) | External program | Gold standard. No ads, no malware, works with 1000+ sites. | | 4K Video Downloader | Desktop app | Clean interface, supports playlists, Opera links work perfectly. | | Video DownloadHelper (Firefox version via "Open in Firefox" if needed) | Browser extension | The only semi-trusted extension, but it's not fully reliable on Opera. | | Online converters (e.g., y2mate.nu - use adblocker ) | Website | No installation. Paste URL, download. Just close pop-up ads. | The Verdict Do not install any SaveFrom-related extension or software in Opera. The risk of malware, ad injection, and privacy theft far outweighs any convenience.