view_all_bug_page.php has a button labeled "Manage Filters"
Since this does not change the state of the current page, it does not save anything, it would be more appropriate to have a hyperlink instead of a button.

It might also be appropriate to change the sequence:
from
<filter name>[Use Filter][Manage Filters][Save Current Filter]
to
[Save Current Filter]<filter name>[Use Filter][Manage Filters]
or to
<filter name>[Use Filter][Save Current Filter][Manage Filters]