I am having the same problem pasting tables from Word 2010 into WP3.9 I am not into css / html coding and I don't want to be because I don't have the inclination or time. I just want to run our village website.
I can paste tables from Word to WP using CtrlV but the table has no vertical or horizontal lines, text size doesn't paste and most disappointing of all is that all the coloured cells just display as white. On the plus side boldface seems to transfer and thankfully so do the hyperlinks. The new pages just look boring now compared to previously being able to paste all the Word formatting. Here is what I have at present, a page created with the old version of WP
and this is all I can achieve now
and I had to physically change the font size of the headings in WP.
If this is the future for WP then I suppose I will just have to look for a different program to use because frankly I just don't have time or the inclination to learn css / html coding.
Another option might be to uninstall WP3.9 and reinstall the previous version, I will have to investigate that option. Meantime I dearly wish the WP writers would at least give us the option of being able to paste Word docs into WP
Incidentally I get the same results using both FF and Chrome.
One final point is that when editing a page in WP3.9, the full toolbar area is now far too large. There are 4 lines of buttons as before but now below that is an equal amount of blank unused toolbar space which is so irritating because it takes up space of the editing window below and I have to keep scrolling up and down all the time. I can get around it by using the toolbar toggle but what is the point of this wasted empty toolbar space?