Invoke ⋮ Chrome Menu → More Tools → Task Manager to see what exactly consumes CPU. Because the helper is a black box from the OS' side of view. I personally found a mining extension that way.
Also watch for ad content and ad blockers in an escalating war, endless refresh and block cycles.
You need Safari 6.1 or newer
Enable Debug menu.
Update: For Mac OS Mojave and newer, go to System Preferences > Security & Privacy > Privacy > Full Disk Access and add Terminal before entering the command.
defaults write com.apple.Safari IncludeInternalDebugMenu -bool true
Set "Use Per-tab web processes" and "Show Web process IDs in page titles" ...
Problematic uses of terminology
Where Oracle describes first Java for "your operating system" then "for your computer", the download is more accurately only for things that use the Internet plug-in:
jre-7u13-macosx-x64.dmg installs what's required for that plug-in, but for things that use Java without the plug-in, this installer from Oracle does nothing.
Use an AdBlock Filter
Filter the cookie requests using your preferred advert blocker for Safari and the block-the-eu-cookie-s***-list:
Adblock / Adblock plus filter list for blocking cookie notifications
Add https://raw.github.com/r4vi/block-the-eu-cookie-shit-list/master/filterlist.txt to your filter subscriptions if you want to block "EU cookie ...
In Mac's mail app you have got the option to create a 'smart mailbox'. This allows you for example to only view unread emails. It can even do that over multiple mailboxes.
Sample rule for unread messages of today (taken from makeusof.com):
If you just want to have the unread messages always on top, there's a sort option for that in the menu between Edit ...
Support for playing .mid files in Safari was removed in 10.8. The QuickTime plugin from 10.7 or 10.6 still works in 10.9 though. See https://discussions.apple.com/message/23948316#23948316.
Copy /Library/Internet Plug-Ins/QuickTime Plugin.plugin from a 10.7 or 10.6 installation to ~/Library/Internet Plug-Ins/ on your 10.9 or 10.8 installation.
Run these ...
is there any way to enable the Silverlight Plug-In in Safari 12?
No, there is no way to make the current version of the Silverlight plugin work with Safari 12.
As of today, no actively supported web browser on macOS can run the current Silverlight plugin (neither Safari, Chrome nor Firefox, see below for more information). The culprit is the technology ...
Chrome, or any modern browser, is not so much directly or itself a problem here.
Flash on the other hand is a problem in itself. If uninstalling system-wide Flash and the one that is embedded within Chrome are not an option, you should at least prohibit it from autoplay.
Misbehaving plugins or extensions might play a role too. Those mentioned by the OP are ...
The Activity Monitor app provides entries for individual Safari tabs. You can search for “Safari” in it to see just Safari-related processes, including all its tabs, and sort by CPU percentage to see which ones are active.
Unfortunately, each process name only includes the domain of the URL, rather than the full URL, so it can be a bit tricky to work out ...
You can see still browse resources in the web inspector.
To download a file, you can copy the URL from the right sidebar, paste it on the location bar, and press ⌥↩.
The web inspector can be shown by pressing ⌥⌘I if you've enabled showing the develop menu in the advanced preferences.
A quick-fix way to avoid this error is to Control-click on the Mail toolbar, select Customize Toolbar ... and instead of accepting the Apple default where Reply, Reply All and Forward are joined in one big button, choose each one singly, dragging them to the toolbar as a single button, spacing them widely and not contiguous at all ... and Show Icon and Text ...
I did some digging and documented my findings.
The plug-in is used to produce the below dialog. It can be triggered by Apple from inside any other web browser. It is unclear when and where this is used.
The answer is at http://docs.oracle.com/javase/7/docs/technotes/guides/jweb/jcp/properties.html (Java 7) and http://docs.oracle.com/javase/8/docs/technotes/guides/deploy/properties.html (Java 8), though the instructions could be more explicit.
They say to set the deployment.webjava.enabled to false in your deployment.properties file, whose location is ...
Unlike Outlook for Windows, neither Outlook:Mac 2011 nor Outlook:Mac 2016 support plug-ins. The closest thing that Outlook:Mac supports is AppleScript, which won't get you to the CardDAV or CalDAV support that you desire.
For my personal usage, I use a combination of Apple Mail (IMAP), BusyCal (CalDAV, which covers both calendar and tasks), and Apple ...
Not the answer you're looking for, but there's no way to use subaddressing from Apple Mail in the way you're after.
iCloud itself does support the overall functionality via email aliases, but this is limited to three email aliases per account (unless you previously moved across from MobileMe with five email aliases). More information about this is ...
I heard back from a Developer Technical Support Engineer at Apple and he said:
"I’ve asked the engineering team about this and indeed, we have removed support for both compiled and AppleScript-based AddressBook plugins in Mojave 10.14."
His suggestion was to file an enhancement request via their Bug Reporter. Sorry for the bad news.
Pages does not support loading LaTeX packages (they're not called plugins, but packages in LaTeX terminology). So you cannot just load up for example chemfig from CTAN that you mention.
Apple provides the following page describing the commands that are supported:
Pages does not include a full LaTeX environment, and ...
Thanks to Thecafremo's tip, the responsible file is ~/Library/Safari/PlugInOrigins.plist. I found an AppleScript published by GitHub user crmne (Carmine Paolino), SafariPowerSaverWhitelister.scpt, that is supposed to add entries (https://gist.github.com/crmne/5855a901a0a9a6ef30a5). You might try it, but it did not work for me in Safari 7.0.3.
I had to create dir Deployment in /Library/Application Support/Oracle/Java/
mkdir /Library/Application\ Support/Oracle/Java/Deployment/
and put deployment.config there.
Now the settings screens looks really disabled.
It appears Spotlight does not make use of Address Book plug-ins.
Extra menu items added by Skype also fail to appear in the Spotlight preview.
It is worth providing feedback to Apple asking for this functionality to be added. It would greatly improve Spotlight.
Context Menu in Contacts.app:
Context Menu of Contact in Spotlight:
I was having a very similar issue, all video or jpg image files were replaced by the "Missing Plug-in" in any email received or sent. After upgrading to the latest Java, deleting the java plist file, repairing permissions, and numerous other suggested solutions from various websites, I downloaded from Apple and installed the latest OSX 10.7.5 "combo" update. ...
Apple changed the way the LSUIElement works in Yosemite. It will cause the app to run as an agent but will no longer cause it to overlay full screen Windows.
To fix, open up the Info.plist file per other people's instructions and add the following two elements:
What plugin-type are they?
GarageBand will only use AU plugins, with a .component extension, it can't use VST etc.
Each plugin type ought to be in its correct sub-folder - Components, Digidesign, HAL, VST etc
Interface types explained (VST, RTAS, AU, etc.)
Finding Audio Units plug-ins on your computer &
How to Install plugins for Garageband - Add ...
Kept playing around after asking and found the right set of actions to add to the workflow to get the result I want. In case anyone has a similar question/requirement in the future, the way to do this is:
Create new Automator flow and select 'print plug-in' - This will add the option to the bottom left button when in the print dialog.
150% seems like an awfully high number, even for Chrome. I'd recommend disabling extensions and such temporarily and seeing if one of them is potentially causing the issue.
If, however, you find that nothing seems to work, you can limit the resources available to Chrome. Limiting the resources provided is pretty easy (provided you're willing to work with a ...
I make it work on Mac Mojave
First i uninstall silverlight like is on this site:
Way 1 – Uninstall Silverlight Manually
I did use the app Funter (free)
Then i install silverlight again
And install seamonkey browser (free)
Then i go to finder, applications i click ...