Safari Facebook Login

If you have Dashlane installed:

There is a problem with Dashlane if you have updated Safari to Safari 11.1 and using Facebook.

Before you login to Facebook, disable Dashlane.

Safari > Preferences > Extensions > Dashlane

Dashlane is aware of the issue.

Ref: Eloise https://discussions.apple.com/thread/8340755

Related: If Safari is slow, stops responding, quits unexpectedly, or has other issues

https://support.apple.com/en-us/HT203353

Try setting up another admin user account to see if the same problem continues. Also try the Safe Mode.

Isolating an issue by using another user account

Safe Mode - About

Safe Mode Startup – El Capitan. also Sierra

If it works in the Safe Mode, try running this program when booted normally and then copy and paste the output in a reply. The program was created by Etresoft, a frequent contributor. Please use copy and paste as screen shots can be hard to read. Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste into a reply. This will show what is running on your computer. No personal information is shown.

Etrecheck – System Information

Try setting up another admin user account to see if the same problem continues. Also try the Safe Mode.

Isolating an issue by using another user account

Safe Mode - About

Safe Mode Startup – El Capitan. also Sierra

If it works in the Safe Mode, try running this program when booted normally and then copy and paste the output in a reply. The program was created by Etresoft, a frequent contributor. Please use copy and paste as screen shots can be hard to read. Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste into a reply. This will show what is running on your computer. No personal information is shown.

Etrecheck – System Information

This is a diagnostic test.

Please run EtreCheck and post the report here.

https://etrecheck.com

Click “Free Download” button, open Downloads folder, click on it to open, and then select ”Open”.

Click on the bouncing EtreCheck icon in the Dock.

“Choose a problem” from the popup menu box, and then “Start EtreCheck” in the dialog.

Click “Share Report” button in the toolbar, select “Copy to Clipboard” .

Paste it into the reply.

Honestly I hate asking users to take probably unhelpful steps.

There is something amiss here with Safari and Facebook connection.

Clearing History is like a low level "Reset Safari".

There are other advanced steps, a user can take to fully reset Safari.

Try it if you wish.

1. Backup the Mac.

2. https://support.apple.com/guide/safari/clear-your-browsing-history-sfri47acf5d6/ mac

~/Library/Safari/History.db

~/Library/Safari/LastSession.plist

~/Library/Safari/Saved Application State/com.apple.Safari.savedState

I am going to use Services menu to locate and show the files.

Double click the each entry posted above and then right click on it.

Choose “Services” from the contextual menu and then “Show in Finder”.

A Finder window will open showing you the item.

Note: All files may not be highlighted.

Right click on it and choose “Move to Trash”.

A demo here:

~/Library/Safari/History.db

Other History files mentioned will be shown right underneath

This is the product of an unfortunate combination of Facebook javascript and Safari behavior. The script below which is loaded by facebook.com will trigger the function "_warnBeforeLeaving" (line 903) when we try to log in. I assume the function was intended to only trigger if the user were actively editing a text input box. Something goes wrong with the script and will automatically trigger the warning without the user actually clicking an input box.

https://static.xx.fbcdn.net/rsrc.php/v3iWMM4/yB/l/en_US/oyoERvu8PHO.js

Bottomline, there is nothing wrong with your Mac or Safari, just Facebook is the usual mess. I would not try any of the recommendations that are having you change system settings or delete certain files unless you are certain your have good time machine backups available.

I don't see anything here that leads to any helpful suggestion.

This is the fourth case I came across in these forums.

One involved Dashboard widget.

Another one involved problem with extensions

I don't know where the problem is coming from. Safari? Facebook?

I would power cycle the router.

Turn off the router, unplug it from the wall, wait a while, plug it back in, turn on the router

and wait until all lights are lit properly before using it.

Only thing I haven't suggested is trying Safari Technology Preview.

Safari Technology Preview is a self standing, easily installable and removable beta version of Safari from Apple.

You can try it if you wish. https://developer.apple.com/safari/technology-preview/

Please try this as a test.

When you try logging in to Facebook, don't use any bookmark or shortcut.

Instead press the space key on the keyboard three times, enter facebook.com in Safari search bar

and then" enter"key.

Can you login this way without this pop-up issue?

Thanks kevin5526.

This pop-up is a built in alert in all browsers.

But the website itself triggers it.

These steps will clean up Safari little bit more.

1. BackUp your Mac.

2. Quit Safari.

Close all windows and quit all other applications.

Hold "option" key down and click "Go" menu in the Finder menu bar.

Library will appear between “Home” and “Computer” entries in the dropdown.

Select "Library" from the dropdown.

Click the “List” view button in the Finder toolbar.

Move these files to trash and test.

3. Scroll down the list, click open the Safari folder, select History files and LastSession.plist

Right click on it and choose “Move to Trash”.

4. Scroll down the list and click open the Saved Application State folder.

You should see the com.apple Safari.savedState folder.

Right click on it and choose “Move to Trash”.

Close Finder window.

Restart and relaunch Safari.

Test.

1. Applications > Utilities > Activity Monitor > CPU

Any process using very high percentage?

2. Launch Dashboard.

Is there any WebClip related to Facebook?

Hi,

Have just loaded Firefox. Facebook logs in and functions perfectly with Dashlane from a bookmark within the Firefox browser. All my news feeds also appear so this problem is likely to be something to do with the Safari interface.

I vaguely recall that in the past I used to have to explicitly click inside the user ID box before I could manually type my login credentials. Also, Safari would auto populate the boxes with my credentials (but without selecting either box). A few weeks ago that behavior has changed. Now the blinky prompt is automatically placed in the user ID box and Safari shows a drop-down menu allowing me to select my user ID. The boxes are no longer auto populated. If I‘m not mistaken it started around the time Apple pushed the latest MacOS security update. Now, I am not sure if this is a new security feature from Apple to protect saved passwords and user names, or rather a new Javascript function pushed by Facebook to automatically select the user ID box when the page is done loading And save the user a mouse click. It could be either. Bottom line, this auto selection is probably what triggers the warn-before-leaving function that has caused us all the headache.

I don't see anything that should be causing a problem. Since it is a system wide problem, try running the combo update. It installs all previous updates plus the new one, which can replace any files that may have become corrupted.

Download macOS High Sierra 10.13.4 Combo Update - Apple Support