• Если в качестве горячей клавиши для сохранения указать стандартное сочетание Ctrl+S, то одновременно с диалогом «Сохранить как MHT» будет появляться стандартный диалог сохранения файла.
  
• Невозможно сохранить в формат MHT через стандартный диалог сохранения файла (сохраняется через «Файл → Сохранить как MHT» или контекстное меню).
  
• Расширение конфликтует с IETab, если не удалить строку /^file:\/\/\/.*\.(mht|mhtml)$/ из фильтра IETab.
  
• Firefox/Mozilla Suite не отвечают при распаковке больших файлов.
  
• Если Content-Type файла обозначен как text/plain, то в процессе распаковки будет виден его исходный код.

[uli]Fixed both Built-in keyboard shortcut and UnMHT's one, when they are same.[/uli]
[uli]Italian locale is now included.[/uli]
[uli]Added [Save all tabs as MHT] command.[/uli]
[uli]Compatiblility with Thunderbird 2.0 (Save only).[/uli]
[uli]Fixed unable to use commands in File menu on SeaMonkey 2.0a.[/uli]
[uli]Fixed [Save as MHT] does not stop when the server does not respond at all.[/uli]
[uli]Add Content-Base support.[/uli]
[uli]Insert BASE element on [Current State] saving (resolve bug with MS-Word which cannot recognize relative link).[/uli]

[uli]Fixed it does not work when Java Quick Starter extension is installed.[/uli]

[uli]Fixed some entity references are not saved correctly in the charset which uses only 1 byte.[/uli]
[uli]Fixed failed to open MHT correctly when space is not exist after colon in Header field.[/uli]
[uli]Updated many locales.[/uli]
[uli]About [Save all tabs as MHT], set default of target directory to home directory.[/uli]
[uli]About [Save all tabs as MHT], confirm whether overwrite or not.[/uli]
[uli]Fixed unable to open MHT when System MIME-Type for MHT is not known.[/uli]

[uli]Updated some locales.[/uli]
[uli]Fixed failed to open MHT files on some environment.[/uli]
[uli]Spanish locale is now included.[/uli]

[uli]Add checkbox to select tabs to save on [Save all tabs as MHT].[/uli]
[uli]Add checkbox to rename filename when same filename is exist on [Save all tabs as MHT].[/uli]
[uli]Fixed directory name displayed incorrectly when it contains multibyte characters on [Save all tabs as MHT].[/uli]
[uli]Add preferences on statusbar menu.[/uli]
[uli]Vietnamese locale is now included.[/uli]
[uli]Updated many locales.[/uli]

[uli]Remember last selected type for [Save all tabs as MHT] dialog.[/uli]
[uli]Fixed [Insert URL as a COMMENT] does not work on [Original file] saving.[/uli]
[uli]Add checkbox to enable/disable cache expiration.[/uli]
[uli]Fixed [Original file] failed to save a page correctly with [Insert URL as a COMMENT] off.[/uli]

[uli]Add shortcut to preference dialog on [Tools] menu.[/uli]
[uli]Add partial support for MHT file exported by PowerPoint.[/uli]
[uli]Add Custom filename for saving MHT (experimental).[/uli]
[uli]Add [Insert Link to original page] (experimental).[/uli]
[uli]Support link to fragment.[/uli]
[uli]Avoid interference with IETab.[/uli]
[uli]Fixed conversion rule of filename.[/uli]
[uli]Fixed failed to load attachment files when Content-Location of root document is leafname.[/uli]
[uli]Change the encoding of HTML/CSS document to quoted-printable.[/uli]
[uli]Prepend BOM to UTF-8 document on saving.[/uli]
[uli]Fixed fail to convert link inside MHT correctly.[/uli]
[uli]Replace action attribute of FORM element.[/uli]
[uli]Replace # and ! to _ in saving filename on Windows environment.[/uli]
[uli]Updated many locales.[/uli]

• Add [Save as MHT + additional files] feature (you can choose it by file type in saving dialog).
  
• Add save selection as MHT feature.
  
• Save non-HTML tab to single MHT file in [Save all tabs as MHT].
  
• Changed handling mechanism from nsIContentHandler to nsIDocumentLoaderFactory.
  
• Changed status indicator of [Save all tabs as MHT].
  
• Fixed message is not shown on overwrite confirm dialog of [Save all tabs as MHT].
  
• Fixed abort button does not work on overwrite confirm dialog of [Save all tabs as MHT].
  
• Fixed failed to save XML Document.
  
• Fixed UnMHT does not work on Thunderbird.
  
• Fixed fail to open the MHT file which contains upper-case letters in Content-Type header.
  
• Support the MHT file which newline code is not uniformed.
  
• Make base64 decoder more flexible.
  
• Fixed failed to open the file which has complex Content-Location header.