diff --git a/.gitignore b/.gitignore
index 6ac19358c59c..68bfa091d929 100644
--- a/.gitignore
+++ b/.gitignore
@@ -37,7 +37,6 @@ ID
 /.clang-tidy
 /.mozconfig*
 /mozconfig*
-/configure
 /old-configure
 /config.cache
 /config.log
@@ -69,7 +68,6 @@ browser/components/pocket/content/panels/css/main.compiled.css.map
 /js/src/obj-*/
 
 # SpiderMonkey configury
-js/src/configure
 js/src/old-configure
 js/src/autom4te.cache
 # SpiderMonkey test result logs
diff --git a/.hgignore b/.hgignore
index aea69261fb04..83fab97aba8f 100644
--- a/.hgignore
+++ b/.hgignore
@@ -34,7 +34,6 @@ compile_commands\.json
 ^\.clang-tidy
 ^\.mozconfig
 ^mozconfig*
-^configure$
 ^old-configure$
 ^config\.cache$
 ^config\.log$
@@ -65,7 +64,6 @@ _OPT\.OBJ/
 ^js/src/obj-.*/
 
 # SpiderMonkey configury
-^js/src/configure$
 ^js/src/old-configure$
 ^js/src/autom4te.cache$
 # SpiderMonkey test result logs