Firefox v38 is older than the ESR, so basically replace ESR with v38.
The dist file change with the Firefox >= 38 addition is the following:
dist/css/bootstrap.css | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/dist/css/bootstrap.css b/dist/css/bootstrap.css
index e37b3d46c..c93e561cd 100644
--- a/dist/css/bootstrap.css
+++ b/dist/css/bootstrap.css
@@ -1874,6 +1874,11 @@ pre code {
opacity: 1;
}
+.form-control::-moz-placeholder {
+ color: #868e96;
+ opacity: 1;
+}
+
.form-control:-ms-input-placeholder {
color: #868e96;
opacity: 1;
@@ -4406,8 +4411,10 @@ tbody.collapse.show {
@media (min-width: 576px) {
.card-columns {
-webkit-column-count: 3;
+ -moz-column-count: 3;
column-count: 3;
-webkit-column-gap: 1.25rem;
+ -moz-column-gap: 1.25rem;
column-gap: 1.25rem;
}
.card-columns .card {
Fixes #24911 (closed), fixes #25017 (closed).