Software Update: Mozilla SeaMonkey 1.0 beta

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Mozilla has released the first beta version of SeaMonkey. SeaMonkey is the new name of the Mozilla Suite and uses part of the code from the Mozilla Suite 1.8 branch. on this server several versions are available for download for Linux, Mac OS X and Windows. You can read what has changed in SeaMonkey 1.0 beta below. For a more detailed list, take a look at this document:


  • Tabs can now be rearranged by dragging and dropping them. (bug 105885)
  • When you close a tab, the browser will select the tab which you last selected if you have not selected or opened any other tabs since the current tab was opened and you have the “Switch to new tabs opened from the left” preference enabled (bug 307126 ).
  • Autoscroll support – middle clicking an empty part of a page allows for scrolling by moving the mouse (bug 304563)
  • SVG and [canvas] are now supported in official builds (except GTK1)
  • When viewing images, tab icons now display thumbnails of the displayed image.
  • Blazingly fast back – this feature allows much faster session history navigation.
  • Users now have a simple tool for reporting websites that aren’t working in SeaMonkey. If installed (Reporter is a custom install option for this release) the tool can be accessed from “Report Broken Website” on the SeaMonkey Help menu.
  • MacOS X: Mozilla Suite disk image now using embedded compression.
  • Various bookmarks menus were made middle-clickable.
  • A lot of (Japanese) IME work being done for Windows.
  • Background tabs can no longer set the status bar (part of bug 104532).
  • Drag slider scrolling now resumes when you drag the mouse back over the slider (bug 282195).
  • [iann] Help viewer’s search is now automatic (like bookmarks or about:config) (bug 281563).
  • [bsmedberg] (Windows) -edit startup flag now works if you used the installer (bug 276943).
  • You can now specify actions for mice with alternate/horizontal scrolling (bug 274179).
  • Power users can set preferences that force links that would new windows into tabs (experimental, bug 231984).
  • [CTho] (Windows) You can now set a pref to change backspace to scroll up or do nothing instead of going back (bug 219203).
  • Help viewer’s external links now reuse an existing window (bug 226911).
  • [Mano] (BiDi) You can now switch the direction of a page or a text field (bug 279416).
  • Serif/Sans Serif fonts preferences are now per-language (bug 95227).
  • [bz] The JavaScript console now correctly displays long messages in last to first order (bug 126620).
  • Copy Image now copies the pixel data as well as the location (some applications require you to use Paste Special to choose the image). (bug 135300).


  • [Standard8] The AOL online presence check within the address book is now disabled by default. Use Tools -> Check Online Presence if you wish to turn it back on (bug 309068).
  • [bienvenu] News message can now be reloaded if it failed due to a temporary network error (bug 107776).
  • [bienvenu] Mozilla Mail can now connect securely to incoming servers that support TLS (bug 60377).
  • [shaver] You can now use one form of WPAD proxy. The advanced manual proxy settings have been moved to their own dialog. You can now use your SOCKS proxy as your DNS server.
  • You can now easily set the delay before mail messages are marked as read (bug 231428).
  • [bienvenu] You can now auto save draft messages (bug 16360/279034).
  • You can now select flagged messages (bug 72823).
  • You can set a hidden preference so that newsgroups are marked read when you finish reading them (bug 99048).


  • [glazou] You can now easily make the Return key start a new paragraph when composing HTML (bug 92686).


  • The Chatzilla menu item now appears in the correct place even if you don’t install Mail (bug 206803).

Under the Hood

  • Please see release notes for Deer Park here.
  • E4X
  • Bug 280711 brings a fix for displaying long blocks on Windows (excluding Windows 95, 98, ME).
  • Fix for 212034 makes printing long tables behave much better and more consistently (cross-platform).
  • [jshin] SeaMonkey now recognizes web pages created for the Mac (bug 237712).

New Issues

  • Pasting text at the beginning of a line in Composer and Mail does not work (Bug 299343)
  • Setting an LDAP server to use for autocomplete may not work correctly – a work around for this is to set it for each account individually (see bug 317566).
  • Performing a search with Google may cause the sidebar to be displayed. To prevent this, make sure “Open the Search tab in the Sidebar when search results are avaliable” checkbox (Edit->Preferences, Navigator->Internet Search) is unchecked. (bug 252802)
  • Email address auto complete doesn’t always work (regression caused by bug 272002).
  • Setting SeaMonkey as your default mail client doesn’t always work.

Version number 1.0 beta
Operating systems Windows 9x, Windows NT, Windows 2000, Linux, Windows XP, macOS, Windows Server 2003
Website Mozilla
License type Prerequisites (GNU/BSD/etc.)
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