It is the same issue that's been marked as resolved in bug 95797, with the exception that it affects docx documents (odt one are fine, haven't tested other formats).
Steps to Reproduce:
1. Create/open any document with *.docx extension, preferably with more than one page
2. Place the cursor at the first page, then move the view to another page
3. Save the document or wait for autosave to occur.
The view jumps back to the page on which the cursor is.
The view should not change.
User Profile Reset: No
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:59.0) Gecko/20100101 Firefox/59.0
Yes, confirmed with a fresh DOCX.
Arch Linux 64-bit
Build ID: c8c74a0b4ca6f3a3619f423b6548c80c52392ae0
CPU threads: 8; OS: Linux 4.15; UI render: default; VCL: kde4;
Locale: fi-FI (fi_FI.UTF-8); Calc: group
Built on April 15th 2018
*** Bug 119702 has been marked as a duplicate of this bug. ***