Here is what Opera said to the developer what contacted via his developer account: 2019 Update: Tampermonkey developer posted about this issue on GitHub and contacted Opera to review the extension and heard back from them that they’re suspicious on Chrome version of Tampermonkey is being distributed by malware’. Note: We request you not to do this for other extensions flagged by Opera or Chrome, do proper research before and take a decision before attempting to activate blocked extensions. Now launch Opera, visit extension manager, you’ll see activated Tampermonkey extension without blocked and blacklisted and malicious warning. Save the changes to Opera Preferences file and close it. Now use Find dialog to search for it in the preferences file and set ‘blacklist’ to ‘false’ and ‘blacklist_state’ to ‘0’.Ħ. Visit Tampermonkey Extension page on Chrome Web Store in another browser and copy the extension ID (“dhdgffkkebhmkfjojejmpbldmpobfkfo”)as you can see it in the address bar right after extension name.ĥ. Select Preferences file, and right click and choose open with > Notepad,Ĥ. Use either Run dialog or paste the above-copied path in Explorer address bar to open that location.ģ. Open Opera, click on menu> Help > About Opera, copy Oper profile path to the clipboard and close the browser.Ģ.

There are no recent negative reviews or comments on Tampermoneky Chrome extension page on Web Store to support Opera claim as malicious, it could be false positive or bug on Opera’s side, if you want to re-enable blacklisted Tampermonkey extension in Opera, you can, here is how.ġ. Re-enable blacklisted Tampermonkey Chrome extension in Opera While Opera is not blocking Tampermonkey extension installed from its store, but it is not the latest version, to be honest. Though there is Opera add-ons Store, most users prefer installing the extensions from Chrome Web Store as they’re updated frequently by developers, same the case with Tampermonkey, available on Web Store and Opera add-ons site. This means it can no longer cause any damage to your machine, You can leave it as is or remove it”. Here is the warning is shown: “We’ve identified this extension as malicious and have blacklisted it. The issue has also been reported by various users in Opera forum. Visiting extensions manager reveals Opera has blocked Tampermonkey citing it as malicious and informs the user he can either leave or remove it. Go to the extensions manager for more details”. If you’ve installed Tampermonkey extension from Chrome Web Store in Opera browser and using it, you’ll notice today you’ll be alerted by a warning that “Opera has blacklisted one of your extensions, and we’ve blocked it for your safety.

Is tampermonkey a safe extension