More tabs open, more RAM used by your computer. It's a serious performance issue.
A smart way to solve it is to snooze tabs for a while, or even for some weeks. A nice Firefox addon to do it:
Mensaje de error
- User warning: Trying to overwrite a cache redirect with one that has nothing in common, old one at address "languages:language_interface, theme, user.permissions" was pointing to "url.query_args:language", new one points to "languages:language_url". in Drupal\Core\Cache\VariationCache->set() (line 138 of core/lib/Drupal/Core/Cache/VariationCache.php).
- User warning: Trying to overwrite a cache redirect with one that has nothing in common, old one at address "languages:language_interface, theme, user.permissions" was pointing to "url.query_args:language", new one points to "languages:language_url". in Drupal\Core\Cache\VariationCache->set() (line 138 of core/lib/Drupal/Core/Cache/VariationCache.php).
- User warning: Trying to overwrite a cache redirect with one that has nothing in common, old one at address "languages:language_interface, route.menu_active_trails:main, theme, user.permissions" was pointing to "url.query_args:language", new one points to "languages:language_url". in Drupal\Core\Cache\VariationCache->set() (line 138 of core/lib/Drupal/Core/Cache/VariationCache.php).
- User warning: Trying to overwrite a cache redirect with one that has nothing in common, old one at address "languages:language_interface, theme, user.permissions" was pointing to "url.query_args:language", new one points to "languages:language_url". in Drupal\Core\Cache\VariationCache->set() (line 138 of core/lib/Drupal/Core/Cache/VariationCache.php).
- User warning: Trying to overwrite a cache redirect with one that has nothing in common, old one at address "languages:language_interface, route.menu_active_trails:account, theme, user.permissions, user.roles:authenticated" was pointing to "url.query_args:language", new one points to "languages:language_url". in Drupal\Core\Cache\VariationCache->set() (line 138 of core/lib/Drupal/Core/Cache/VariationCache.php).
- User warning: Trying to overwrite a cache redirect with one that has nothing in common, old one at address "languages:language_interface, theme, user.permissions" was pointing to "url.query_args:language", new one points to "languages:language_url". in Drupal\Core\Cache\VariationCache->set() (line 138 of core/lib/Drupal/Core/Cache/VariationCache.php).