Adblock Plus

When Adblock Plus add-on is enabled I unable to select text with mouse left-click and dragging cursor across the text in IE 11 on some sites, like https://my.yahoo.com/#, or http://news.yahoo.com.
Selection works fine here though: forum, some other sites, like: http://www.dailyrotation.com/
Selection works, if cursor is moved with shift+arrow caps on keyboard into the forms needed to be filled, but again doesn't work with a left click and dragging the cursor when the add-on is enabled. I think this is a serious issue that needs to be addressed.
Can anyone help me with this issue today?

Win7, IE11 & ABP 1.3.

I just checked your links (https://my.yahoo.com/#, & http://news.yahoo.com).
Both work fine for me. I can select with left click & mouse drag & then copy & paste anything on either page.

I suggest using "Manage Add-ons" & removing/disabling all other Add-ons & then checking again.