MacBook Pro 10.6.8 
1. I ran a permissions check using disk utility. I run it periodically and it always has a list of mismatched permissions which it repairs. I can't say I've ever noticed any change before or after repairs. Today I got a warning that a problem could not be repaired.
Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent" has been modified and will not be repaired.
I don't have remote login, remote management or remote apple events checked in sharing if that is the core services it's referencing. Is there anything I can or should do about this warning?
2. I'm trying to troubleshoot the problem that my browsers keep crashing, requiring force quit and occasionally freezing my whole computer so I have to shut down by pushing the off button. I suspect that the problem is the browsers need to be upgraded and that requires updating my mac os. So I'm also preparing to upgrade to el capitan if I can't otherwise solve the problem. So I've run the hardware check by holding down the D on bootup and I've run the drive check in disk utility. I'm planning on running a malware checker and on reading about different options in the posts I came across Etrecheck and actually ran it.
The HD report says I have a Hitachi Travelstar 7K500, which is a smart drive and smart support is enabled. Once upon a time I knew what a SMART drive was but now I don't. The overall health assessment was "passed". But It also says no self-tests have ever been run and to run one use "smartctl -t" which I guess is a terminal command. I'm guessing you do that boot into a command like program.
There's a table of values tested by Etrecheck like raw read-error-rates and seek_error_rates with values or terms such as old_age and pre_fail. Lots of old-ages and pre-fails.
Is my HD failing? I don't want to do all the upgrade work if I have to replace the HD. Should I run the self test and how do I do that?
Below is the full report:
smartctl 6.5 2016-05-07 r4318 [Darwin 10.8.0 i386] (local build)
Copyright © 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Hitachi Travelstar 7K500
Device Model: Hitachi HTS725050A9A362
Serial Number: 100707PCG420VLJL2ZJC
LU WWN Device Id: 5 000cca 5b5e468e4
Firmware Version: PC4ACB1E
User Capacity: 500,107,862,016 bytes [500 GB]
Sector Size: 512 bytes logical/physical
Rotation Rate: 7200 rpm
Form Factor: 2.5 inches
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS T13/1699-D revision 6
SATA Version is: SATA 2.6, 1.5 Gb/s
Local Time is: Tue Jan 31 10:45:20 2017 EST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
Total time to complete Offline
data collection: ( 645) seconds.
Offline data collection
capabilities: (0x5b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
Offline surface scan supported.
No Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 131) minutes.
SCT capabilities: (0x003d) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000b 100 100 062 Pre-fail Always - 0
2 Throughput_Performance 0x0005 100 100 040 Pre-fail Offline - 0
3 Spin_Up_Time 0x0007 215 215 033 Pre-fail Always - 2
4 Start_Stop_Count 0x0012 089 089 000 Old_age Always - 17341
5 Reallocated_Sector_Ct 0x0033 100 100 005 Pre-fail Always - 0
7 Seek_Error_Rate 0x000b 100 100 067 Pre-fail Always - 0
8 Seek_Time_Performance 0x0005 100 100 040 Pre-fail Offline - 0
9 Power_On_Hours 0x0012 068 068 000 Old_age Always - 14117
10 Spin_Retry_Count 0x0013 100 100 060 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 094 094 000 Old_age Always - 9594
160 Unknown_Attribute 0x0032 100 100 000 Old_age Always - 0
191 G-Sense_Error_Rate 0x000a 100 100 000 Old_age Always - 1279900254208
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 4296409104
193 Load_Cycle_Count 0x0012 001 001 000 Old_age Always - 1153399
194 Temperature_Celsius 0x0002 203 203 000 Old_age Always - 27 (Min/Max 13/47)
195 Hardware_ECC_Recovered 0x000a 100 100 000 Old_age Always - 0
196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0
197 Current_Pending_Sector 0x0022 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0008 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x000a 200 200 000 Old_age Always - 0
223 Load_Retry_Count 0x000a 100 100 000 Old_age Always - 0
254 Free_Fall_Sensor 0x0032 100 100 000 Old_age Always - 179
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
No self-tests have been logged. [To run self-tests, use: smartctl -t]
SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.