See what happens in the Firefox SafeMode.

Note that your System Details list shows that you have a user.js file in the profile folder to initialize prefs each time Firefox starts. The user.js file will only be present if you or other software has created this file and normally won't be present.

You can check its content with a plain text editor (right-click: "Open with"; do not double-click). The user.js file is read each time Firefox is started and initializes preferences to the value specified in this file, so preferences set via user.js can only be changed temporarily for the current session.

You can delete the user.js file if you didn't create this file yourself.

You can use this button to go to the current Firefox profile folder:

• Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)
• http://kb.mozillazine.org/Profile_folder_-_Firefox

Windows hides some file extensions by default. Among them .html and .ini and .js and .txt and you may only see a file name without file extension. You can check the file extension (type) in the properties of the file in Windows Explorer via the right-click context menu.

cor-el said

Note that your System Details list shows that you have a user.js file in the profile folder to initialize prefs each time Firefox starts. The user.js file will only be present if you or other software has created this file and normally won't be present. You can check its content with a plain text editor (right-click: "Open with"; do not double-click). The user.js file is read each time Firefox is started and initializes preferences to the value specified in this file, so preferences set via user.js can only be changed temporarily for the current session. You can delete the user.js file if you didn't create this file yourself. You can use this button to go to the current Firefox profile folder:

• Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)
• http://kb.mozillazine.org/Profile_folder_-_Firefox

Windows hides some file extensions by default. Among them .html and .ini and .js and .txt and you may only see a file name without file extension. You can check the file extension (type) in the properties of the file in Windows Explorer via the right-click context menu.

Thanks, I deleted these (two) user.js files and it seems (for now) to be scrolling better. I have no idea what "put them there" as the filedates were from 2012. There was only one line of code in the file(s):

"user_pref("yahoo.ytff.general.dontshowhpoffer", true);"

Russ

Those entries were from the Yahoo toolbar application for Firefox (ytff) that you might have installed in that time. I don't think that they should be causing this if you no longer have this toolbar installed.

I do notice a "Scrollbar Search Highlighter" extension in your System Details list that might be causing this issue.

• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

cor-el said

Those entries were from the Yahoo toolbar application for Firefox (ytff) that you might have installed in that time. I don't think that they should be causing this if you no longer have this toolbar installed. I do notice a "Scrollbar Search Highlighter" extension in your System Details list that might be causing this issue.

• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

I disabled this extension and see no difference in what "CTRL-F" brings up. In other words, I don't know why I had this in the first place. Since the interface seems the same with or without the extension enabled, I'm leaving it disabled. Will post back in a day or two on the scrollbar behavior.

Thanks!

Russ

It's behaving much better, still not perfect though...

Russ