| AutocopySelection2Clipboard | | - | | |
| AutoFormer | | - | | |
| AutoFill Forms (e10s) | | - | | |
| AutoCopy Addon | | - | | |
| AutoCopy 2 | | - | | |
| AutoCopy (WebExtension) | | - | | |
| AutoComplete | | - | | |
| Auto Cursor | | - | | |
| Auto Copy | | - | | |
| Append to Clipboard | | - | | |
| Annotating the Web | | - | | |
| AddMoreTextToClipboard | | - | | |
| Add to clipboard | | - | | |