See if this helps.

Remove Search.InstallMac.com from Apple Mac OS X

See this post.

Homepage of safari is locked and unable to change it

Quick Update: Safari 11 now appears to be generating Webpageicons.db-shm and Webpageicons.db-wal files in the ~/Library/Safari folder, but deleting them following after a Safari “Reset” (Clear Cache & Clear All History) has no effect on restoring the Web Page Icons in Bookmarks.

After the Safari "reset" -- quit Safari, delete the Favicon files listed above, and relaunch Safari. This restores the Web Page Icons every time.

Do a backup, preferably 2 backups on 2 separate drives.

Quit the application.

Go to Finder and select your user/home folder. With that Finder window as the front window, either select Finder/View/Show View options or go command - J.  When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder.  Select Library/Safari. Move the files starting with History to you Desktop.

Restart the computer, open the application, and test. If it works okay, delete the files from the desktop.

If the application is the same, return the files to where you got it from, overwriting the newer one.

Thanks to leonie for some information contained in this.

Hi LouIsFatAndSassy,

Try the following steps to troubleshoot your issue.

Back up your iPhone

https://support.apple.com/en-us/HT203977

Restart your iPhone

https://support.apple.com/en-us/HT201559

Reset All Settings

Open the Settings application. Navigate to General > Reset > Reset All Settings.

Restore your iPhone

https://support.apple.com/en-us/HT201252

Set Up as New iPhone

https://support.apple.com/en-us/HT202033

All the best.

Flash must be DLed and installed.  Apple does not include it as another user told me.  That's it for this question, just DL it.

https://support.apple.com/en-us/HT204098

You are welcome.

I think that my bar may have been a different color with safe mode? Otherwise I'm not able to tell any d

One of our techs found a work around. Might be useful for those of you who, you know, need to work.

1. Enable Developer mode in preferences (Preferences > Advanced > Show develop menu in the menu bar)
2. When you're on the page that you need to launch the java applet, Mimic IE11.
   1. Develop > User Agent > Internet Explorer 11

You may still need to go in to the plugins area to allow the Java plugin on the specific site you wish to use, but you'd probably already done this in Safari 10.