If, after editing filters (but not pressing 'Apply changes'), the user switches the tab within the uBlock Dashboard, all edits will be lost.

Steps to Reproduce:

1. Open uBlock Dashboard.
2. Select 'My filters' tab.
3. Edit one or more filters.
4. Select any other tab in the uBlock Dashboard.
5. Select 'My filters' tab.

Actual Results:
All edits in Step 3 above are lost.

Expected Results:
Either do not lose edits when switching tabs within uBlock Dashboard, or display a query box: 'Changing uBlock Dashboard tabs will discard changes. Apply changes?'

Test System: uBlock Origin 0.9.7.5, Firefox 38.0.1, Win7 SP1

Workaround:
The following can be applied to a local stylesheet to make the need to press the 'Apply changes' button more prominent.
/* 'Apply changes' button: increase width */

userFiltersApply { min-width: 300px; }

/* 'Apply changes' button: add prominent glow when a change has been made (switching dashboard tabs without applying loses changes) */

userFiltersApply:not([disabled]) { filter: drop-shadow(0px 0px 9px green); color: green; }