Index: gc_lang/fr/config.ini
==================================================================
--- gc_lang/fr/config.ini
+++ gc_lang/fr/config.ini
@@ -44,13 +44,14 @@
 oxt_update_info_URL = https://grammalecte.net/grammalecte/oxt/grammalecte.update.xml
 
 # Firefox
 fx_identifier = French-GC@grammalecte.net
 fx_name = Grammalecte [fr]
-
+win_fx_path = C:\Program Files\Mozilla Firefox\firefox.exe
 win_fx_dev_path = C:\Program Files\Firefox Developer Edition\firefox.exe
 win_fx_nightly_path = C:\Program Files\Firefox Nightly\firefox.exe
+linux_fx_path = /usr/bin/firefox
 linux_fx_dev_path = /usr/bin/firefox
 linux_fx_nightly_path = /usr/bin/firefox
 
 # Thunderbird
 tb_identifier = French-GC-TB@grammalecte.net

Index: make.py
==================================================================
--- make.py
+++ make.py
@@ -371,11 +371,12 @@
     xParser.add_argument("-p", "--perf", help="run performance tests", action="store_true")
     xParser.add_argument("-pm", "--perf_memo", help="run performance tests and store results in perf_memo.txt", action="store_true")
     xParser.add_argument("-js", "--javascript", help="JavaScript build for Firefox", action="store_true")
     xParser.add_argument("-acd", "--add_community_dictionary", help="add community dictionary to the build", action="store_true")
     xParser.add_argument("-apd", "--add_personal_dictionary", help="add personal dictionary to the build", action="store_true")
-    xParser.add_argument("-fx", "--firefox", help="Launch Firefox Developper for WebExtension testing", action="store_true")
+    xParser.add_argument("-fx", "--firefox", help="Launch Firefox for WebExtension testing", action="store_true")
+    xParser.add_argument("-fxd", "--firefox_dev", help="Launch Firefox Developper for WebExtension testing", action="store_true")
     xParser.add_argument("-fxn", "--firefox_nightly", help="Launch Firefox Nightly for WebExtension testing", action="store_true")
     xParser.add_argument("-l", "--lint_web_ext", help="web-ext lint on the WebExtension", action="store_true")
     xParser.add_argument("-tb", "--thunderbird", help="Launch Thunderbird", action="store_true")
     xParser.add_argument("-tbb", "--thunderbird_beta", help="Launch Thunderbird Beta", action="store_true")
     xParser.add_argument("-i", "--install", help="install the extension in Writer (path of unopkg must be set in config.ini)", action="store_true")
@@ -453,11 +454,15 @@
             if xArgs.lint_web_ext:
                 with helpers.CD("_build/webext/"+sLang):
                     os.system(r'web-ext lint -o text')
 
             # Firefox
-            if xArgs.firefox:           # Firefox Developer edition
+            if xArgs.firefox:           # Firefox
+                with helpers.CD("_build/webext/"+sLang):
+                    spfFirefox = dVars['win_fx_path']  if platform.system() == "Windows"  else dVars['linux_fx_path']
+                    os.system(r'web-ext run --firefox="' + spfFirefox + '" --browser-console')
+            if xArgs.firefox_dev:       # Firefox Developer edition
                 with helpers.CD("_build/webext/"+sLang):
                     spfFirefox = dVars['win_fx_dev_path']  if platform.system() == "Windows"  else dVars['linux_fx_dev_path']
                     os.system(r'web-ext run --firefox="' + spfFirefox + '" --browser-console')
             if xArgs.firefox_nightly:   # Firefox Nightly edition
                 with helpers.CD("_build/webext/"+sLang):