Thunderbird version 140.11.0esr (64-bit): I can't make new message filters
The oversized menu box cuts off the the "Save" key and I can't re-size the Message Filter/New Filter box nor can I slide it up for access to the button on the very bottom… (read more)
The oversized menu box cuts off the the "Save" key and I can't re-size the Message Filter/New Filter box nor can I slide it up for access to the button on the very bottom. Windows 10 Home, Version 22H2, Installed on 9/14/2021, OS Build 19045.6466.
I've tried a dozen fixes suggested by Duck AI and none had any effect on the Filter box. Here’s a concise list from Duck AI of every fix I tried:
Hold Shift while opening the Filter menu (compact popup).
Shorten long filter names (Tools > Message Filters).
Change system UI scale (Windows Display scaling).
Toggle toolbars / layout to reclaim space (View > Toolbars / Layout).
Use Tools > Message Filters dialog (resizable) instead of the menu.
Add userChrome.css rules (multiple variants) in profile/chrome/userChrome.css to force max-height, scrollbars, reduced font/padding:
Generic menupopup rule (max-height: 420px, font-size: 11px).
Targeted rule including .filter-menu-popup and #createFilterFromPopup (max-height: 300–520px, font-size: 10–11px).
Final variant replacing values with 360px (no effect).
Attempted diagnostics via screenshots and Developer Toolbox (Ctrl+Shift+I) — determined screenshots showed Filters dialog, not popup.
Determined the "Create Filter From" list is likely a native Windows popup (userChrome.css cannot style).
Workarounds proposed:
Use the resizable Message Filters dialog to create filters manually.
AutoHotkey script (Ctrl+Alt+F) to open New Filter and pre-fill From/To/Subject from the selected message (provided full script).