mysql e firefox

[beyraq 0]

olá pessoal, estou com um pequeno problema no wordpress, eu tenho o blog http://nossospasseios.com funciona bem em todos navegadores, exceto no firefox, a imagem de destaque não abre, somente com reload, eu tinha resolvido antes no mysql my.cnf mas não lembro qual config tinha usado, a atual, está bem, alguém pode me ajudar? obrigado

minha config

[mysqld]

max_connections = 500

table_open_cache = 1000

max_user_connections = 250

key_buffer_size = 256M

thread_cache_size = 4

query_cache_type = 1

thread_concurrency = 8

tmp_table_size = 128M

max_heap_table_size = 128M

interactive_timeout = 45

wait_timeout = 7200

key_buffer = 64M

max_allowed_packet = 64M

sort_buffer = 2M

myisam_sort_buffer_size = 32M

join_buffer_size = 512k

read_buffer_size = 512k

thread_stack = 512k

innodb_thread_concurrency = 4

innodb_buffer_pool_size = 32M

innodb_file_per_table = 1

expire_logs_days = 5

query_cache_limit = 8M

query_cache_size = 128M

connect_timeout = 15

mysqltuner

root@Ubuntu:~# mysqltuner

>> MySQLTuner 1.3.0 - Major Hayden <major@mhtx.net>

>> Bug reports, feature requests, and downloads at http://mysqltuner.com/

>> Run with '--help' for additional options and output filtering

[OK] Logged in using credentials from debian maintenance account.

[OK] Currently running supported MySQL version 5.6.25-0ubuntu0.15.04.1

[OK] Operating on 64-bit architecture

-------- Storage Engine Statistics -------------------------------------------

[--] Status: +ARCHIVE +BLACKHOLE +CSV -FEDERATED +InnoDB +MRG_MYISAM

[--] Data in MyISAM tables: 5K (Tables: 2)

[--] Data in PERFORMANCE_SCHEMA tables: 0B (Tables: 52)

[--] Data in InnoDB tables: 3M (Tables: 35)

[OK] Total fragmented tables: 0

-------- Security Recommendations -------------------------------------------

[OK] All database users have passwords assigned

-------- Performance Metrics -------------------------------------------------

[--] Up for: 2h 39m 14s (819 q [0.086 qps], 128 conn, TX: 3M, RX: 113K)

[--] Reads / Writes: 89% / 11%

[--] Total buffers: 368.0M global + 3.8M per thread (214 max threads)

[OK] Maximum possible memory usage: 1.1G (58% of installed RAM)

[OK] Slow queries: 0% (0/819)

[OK] Highest usage of available connections: 0% (1/214)

[OK] Key buffer size / total MyISAM indexes: 64.0M/113.0K

[OK] Query cache efficiency: 34.4% (196 cached / 569 selects)

[OK] Query cache prunes per day: 0

[OK] Sorts requiring temporary tables: 0% (0 temp sorts / 37 sorts)

[OK] Temporary tables created on disk: 9% (11 on disk / 112 total)

[OK] Thread cache hit rate: 99% (1 created / 128 connections)

[OK] Table cache hit rate: 94% (117 open / 124 opened)

[OK] Open file limit used: 4% (50/1K)

[OK] Table locks acquired immediately: 100% (319 immediate / 319 locks)

[OK] InnoDB buffer pool / data size: 32.0M/3.6M

[OK] InnoDB log waits: 0

-------- Recommendations -----------------------------------------------------

General recommendations:

MySQL started within last 24 hours - recommendations may be inaccurate