If you’re asked to trust or update a plug-in in Safari on Mac
Some websites use plug-ins to provide video, animation, or other special content. However, plug-ins can be exploited and may present a security or privacy risk. You can choose to use only certain plug-ins on trusted websites you select.
A dialog may appear when you visit a website that has plug-in content or when you change the blocking policy for a plug-in in the Websites pane of Safari preferences.
If plug-in content isn’t visible and the dialog asks: Would you like to use [plug-in name] on [website address]?
You have these choices:
Use Every Time: Safari uses the plug-in to show content for this website. The plug-in remains enabled for this website as long as you visit regularly.
Cancel: Safari won’t use the plug-in to show content on this website. To use the plug-in to show content for this website when you visit it again, choose View > Reload With Plug-Ins, or click and hold the Reload icon
at the right end of the Smart Search field and choose Reload With Plug-Ins.Use Once: Safari uses the plug-in to show content for this website now but not when you visit it again. To use the plug-in to show content for this website when you visit it again, choose View > Reload With Plug-Ins, or click and hold the Reload icon
at the end of the Smart Search field and choose Reload With Plug-Ins.
Note: For all websites, Safari turns off the Adobe Flash Player plug-in by default.
If plug-in content is visible and the dialog asks: Do you want to trust the website [website address] to use the [plug-in name] plug-in?
You have these choices:
Trust: Safari uses the plug-in to show content for this website and doesn’t ask about this plug-in when you visit this website again.
Cancel: Safari shows a “[Plug-in] blocked for this website” placeholder instead of plug-in content on this website now and when you visit it again. To see plug-in content, click the placeholder, then click Trust.
If the plug-in content isn’t visible and the dialog asks: Do you want to trust the website [website address] to use the [plug-in name] plug-in?
You have these choices:
Never for this Website: Safari doesn’t let the website use the plug-in.
Trust: Safari lets the website use the plug-in and doesn’t ask about it when you visit this website again.
Not Now: Safari doesn’t let the website use the plug-in now, but asks about it again the next time you visit this website.
If the dialog asks: Are you sure you want to trust the website or all websites to run [plug-in name] in unsafe mode?
You have these choices:
Trust: Safari uses the plug-in in unsafe mode. The plug-in can access your personal data and documents.
Cancel: Safari doesn’t use the plug-in in unsafe mode. When a plug-in runs in unsafe mode, it can access your personal documents and data.
If the dialog says a plug-in needs updating
You have these choices:
Download [Plug-in]: Goes to a website where you can get an update. After downloading, install the update, then quit and reopen Safari.
Turn Off [Plug-in]: The plug-in is disabled, and Safari attempts to show the content without it. If that doesn’t work, a placeholder appears on this website until you update the plug-in.
If the dialog says your plug-in version has critical security issues
By default, Safari doesn’t let the website use the plug-in.
To use the plug-in anyway, choose Safari > Preferences, then click Websites. Select the plug-in on the left, click the pop-up menu for this website, then choose On. Doing this may present a security or privacy risk, so choose this option only for a website you trust.
To change the plug-in blocking policy for future visits to a website, choose Safari > Preferences, then click Websites. Select the website, then choose plug-in settings. See Change Websites preferences in Safari on Mac.