diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1b8d7ac29b..887160e68e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,13 +15,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Add "Api Key" page link to sub-navigation of "User" and "Me" sections ([#1464](https://github.com/scm-manager/scm-manager/pull/1464))
 - Empty page on repository namespace filter ([#1476](https://github.com/scm-manager/scm-manager/pull/1476))
 - Usage of namespace filter and search action together on repository overview ([#1476](https://github.com/scm-manager/scm-manager/pull/1476))
+- Fix tooltip arrow height in firefox ([#1479](https://github.com/scm-manager/scm-manager/pull/1479))
 
 ## [2.11.1] - 2020-12-07
 ### Fixed
 - Initialization of new git repository with master set as default branch ([#1467](https://github.com/scm-manager/scm-manager/issues/1467) and [#1470](https://github.com/scm-manager/scm-manager/pull/1470))
 
 ## [2.11.0] - 2020-12-04
-
 ### Added
 - Add tooltips to short links on repository overview ([#1441](https://github.com/scm-manager/scm-manager/pull/1441))
 - Show the date of the last commit for branches in the frontend ([#1439](https://github.com/scm-manager/scm-manager/pull/1439))
diff --git a/scm-ui/ui-styles/src/scm.scss b/scm-ui/ui-styles/src/scm.scss
index ace55efd5f..c6fbb2fad1 100644
--- a/scm-ui/ui-styles/src/scm.scss
+++ b/scm-ui/ui-styles/src/scm.scss
@@ -833,9 +833,15 @@ form .field:not(.is-grouped) {
   cursor: pointer;
 }
 
-// until update to bulma version 0.7.5
-.has-text-weight-medium {
-  font-weight: 500 !important;
+// fix tooltip bug in firefox
+// for bulma-tooltip v3.0.0
+[data-tooltip]:not(.is-disabled).has-tooltip-right::after,
+[data-tooltip]:not(.is-loading).has-tooltip-right::after,
+[data-tooltip]:not([disabled]).has-tooltip-right::after,
+[data-tooltip]:not(.is-disabled).has-tooltip-left::after,
+[data-tooltip]:not(.is-loading).has-tooltip-left::after,
+[data-tooltip]:not([disabled]).has-tooltip-left::after {
+  height: 12px;
 }
 
 .diff-gutter-conflict {