step 3. in the address bar of Firefox: aboutebugging#addons Click on the button "Load temporary Add-on ..." choose the previously downloaded s3translator_6.24.xpi
step 4. do any translation to make sure that it works
step 5. rebooting firefox the temporary extension s3translator_6.24.xpi will automatically be removed from the browser and the previously installed s3translator-6.19-fx_signed.xpi will be restored
BUT!! The new key for the google-translation API will be saved and you will be able to use version 6.19! in about a month, the key will become expired and you will need to repeat from step 3
Step 1.
if you already have version 6.19 installed - skip this step
for others:
Download and install the latest official signed version:
https://www.dropbox.com/s/6cyd67ixup4y7s4/s3translator-6.19-fx_signed.xpi
step 2.
Download the latest (now it is 6.24) unsigned version:
https://www.dropbox.com/s/8e45m9jhu5usruz/s3translator_6.24.xpi
step 3.
in the address bar of Firefox: about
Click on the button "Load temporary Add-on ..."
choose the previously downloaded s3translator_6.24.xpi
step 4.
do any translation to make sure that it works
step 5.
rebooting firefox
the temporary extension s3translator_6.24.xpi will automatically be removed from the browser and the previously installed s3translator-6.19-fx_signed.xpi will be restored
BUT!!
The new key for the google-translation API will be saved and you will be able to use version 6.19!
in about a month, the key will become expired and you will need to repeat from step 3