Lists pasted from Word are transformed into paragraphs with different margins.
To reproduce, check the sample Word document. In Firefox, after pasting from Word it becomes something like:
<p style="margin-left: 72pt;">
a. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.</p>
<p style="margin-left: 72pt;">
b. Nulla accumsan, elit sit amet varius semper, nulla mauris mollis quam, tempor suscipit diam nulla vel leo. Nulla quis diam. Nulla est. Fusce suscipit libero eget elit.</p>
<p style="margin-left: 108pt;">
1) Maecenas fermentum, sem in pharetra pellentesque, velit turpis volutpat ante, in pharetra metus odio a lectus.</p>
<p style="margin-left: 108pt;">
2) Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.</p>
Confirmed on: Windows 7 64-bit EN + MS Office 2010 EN + Firefox 3.6.10
Linked with #6286