Installing English/British Dictionaries
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Select where to install the dictionaries:

Firefox, Thunderbird & SeaMonkey OpenOffice/LibreOffice

 Firefox opening folder (depending on the browser, this may change slightly):

 *If your Firefox has a default download folder, drag the file from that folder into the Desktop, after downloading:


1) Firefox, Thunderbird & SeaMonkey

To install add-ons, one can simply search for them from inside Firefox/Thunderbird.

If you have the GB speller from the other person, remember to uninstall it first because it will conflict with mine.

To install manually, go to the dictionary page using Firefox and:

1) Downloading the dictionary
1.1) Firefox (WebExtension)(Requires V60.5+ ESR or V62+)
Save Link As*
(right-click on the "+ Add to Firefox" button)
1.2) Thunderbird (WebExtension)(Requires V60.5+ ESR or V65+)
Save Link As*
(right-click on the "+ Download Now" button)

2) Installing the dictionary
Menus: Tools Add-onsExtensions/DictionariesInstall Add-on from file.
(then select the .xpi file from step 1)
You can also drag and drop the .xpi file into the add-ons (Extensions/Dictionaries) window.
2.1) Firefox

Notice: For some time that Firefox has the menus hidden.
Right-click on the right of the last tab, after the "+",
and select "Menu Bar".
2.2) Thunderbird

3) Activating the dictionary
3.1) Firefox
Right-click in an editable text area and:

Create a new message and:
(temporary: current e-mail)

Or go to Tools Options and:
(permanent: default for all e-mails)

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To install manually, go to the dictionaries page and:

1) Downloading the dictionaries
1.1) OpenOffice
Click on the "Download Extension" button and select to save*
the .oxt file to hard disk.
AOO Notice: The download starts automatically, DON'T CLICK
anywhere until it has started.
1.2) LibreOffice
Click on the download button and select to save*
the .oxt file to hard disk.

2) Installing the dictionaries
In Writer, go to ToolsExtension Manager.

Select "Add", then the .oxt file and it will take a moment to install.
2.1) OpenOffice

2.2) LibreOffice

3) Close Writer and the Quickstarter in the tray icon area.
LibreOffice will open a window asking to restart automatically.

4) Activating a dictionary
Open Writer again and choose the language in the bottom with a right-click.
It is better to select all the text of a document (CTR + A) and then select the language.
Optionally, you can go to: ToolsLanguage For All TextEnglish (UK)
4.1) OpenOffice
4.2) LibreOffice

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Last update: 25.Apr.2019