Clarify the exact issues that are fixed in Changelog.

Author: jennifer-shehane

source/_changelogs/5.0.0.md

@@ -28,8 +28,8 @@ Cypress now includes support for test retries! Similar to how Cypress will retry
 
 **Bugfixes:**
 
-- Cypress will now properly run on Firefox versions >= 75. Addressed in {% PR 7791 %}.
-- The Developer Tools menu will now always display in Electron when switching focus from Specs to the Test Runner. Addressed in {% PR 7791 %}.
+- Cypress will no longer throw a `Cannot read property 'isAttached' of undefined` error during `cypress run` on Firefox versions >= 75. Fixes {% PR 6813 %}.
+- The Developer Tools menu will now always display in Electron when switching focus from Specs to the Test Runner. Fixes {% PR 3559 %}.
 - We now emit the pass event from Mocha after all hooks have run. Fixes {% issue 7730 %}.
 
 **Documentation Changes:**