Running Ubuntu 14.04, but happened with 13.10 too. Also tried disabling language add-ons but no es_CU is there anyway. The about:config change works until I restart.
2 Answers
I had this same problem, despite having creating a user.js file in my profile directory with the following single line of content:
user_pref("spellchecker.dictionary", "en_US");
I fixed it by uninstalling myspell-es. Since I still need to have a Spanish dictionary to use in LibreOffice, I downloaded and installed the generico-america-latina-y-espana dictionary (although I had to rename it generico-america-latina-y-espana.oxt to get it to install).
See this mozillaZine post for full details, which may help anyone who has a similar, but not quite the same, problem.
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1It's a year later (Firefox 40 on Ubuntu 14.04)... but for what it's worth, when right-click here in this comment-editor box, and select
English (United States)
from theLanguages
,about:config
shows thespellchecker.dictionary
setting to been-US
, noten_US
. Similarly, it uses a hyphen for the other variants, e.g.en-GB
,en-ZA
etc. So I wonder if putting "en-US" in youruser.js
would have made a difference.– LambartSep 20, 2015 at 20:28
Press ctrl+alt+T.
It will open a terminal window
Then enter 'su' it will prompt for root password. after that type firefox. Make necessary changes now. and also have a look http://forums.mozillazine.org/viewtopic.php?f=38&t=2865587
I will suggest you to reset firefox then apply the necessary changes. In firefox menu bar go to help>troubleshooting information>reset firefox. It will reset the firefox.
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By running Firefox as root, wouldn't you just be changing the root user's profile settings? Not to mention making it easier for malware to compromise security--I can't think of any good reasons to run a web browser as a superuser.– LambartSep 20, 2015 at 20:24
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