Funksjoner
Features
- Automatically attaches files from the original email when replying.
 - Configurable behavior: attachments can be
- added automatically, or
 - added only after confirmation (a small, accessible dialog). In Options you can enable the confirmation and choose the default answer (Yes/No).
 
 - Blacklist of filenames (glob patterns) prevents specific files from being
attached automatically. Examples: 
*intern*,*secret*,*passwor*. Matching is case‑insensitive and checks the filename only; provide one pattern per line in Options. - Blacklist warning (optional, enabled by default): when files are excluded by your blacklist, a small modal lists the file and the matching pattern(s). Dark‑mode friendly and keyboard accessible (Enter/Esc to close).
 - Works with Reply and Reply all. Forward is not modified by this add-on.
 - Adds originals even if you already attached something yourself; avoids duplicates by filename.
 - Per‑tab duplicate guard prevents double‑adding in the same compose tab.
 - Skips S/MIME certificates and inline images to avoid unnecessary attachments.
 
How It Works
- On reply, the add-on lists original attachments.
 - Filters out S/MIME signatures and inline images.
 - Optionally asks for confirmation (keyboard-friendly).
 - Adds eligible files to your compose, avoiding duplicates by filename.
 - See “Why attachments might not be added” in Usage for edge cases.
 
Privacy note: All processing happens locally in Thunderbird. The add-on makes no background network requests.