We should try to preserve scroll position for client-side navigation. When the user goes back to a page, they should see the same part they were seeing before.
Bug 1561020 Comment 1 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
We should try to preserve scroll position for client-side navigation. When the user goes back to a page, they should see the same part they were seeing before. Filed bug 1562271 for this