Why is Firefox very slow and Safari fast, opening up Yahoo/AOL?

My iMac is all up to date, running fine! My wife loves AOL, the default browser for her is Safari. It runs fine and is fast. I prefer Yahoo and use Firefox. Firefox can be fast but most of the time it take 30+ seconds to open any page/link....? I have both Safari and Firefox set up in the Dock. What am I missing....? Thanks, Bill

Post to the FireFox forums, not here.

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    Problem description:
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    EtreCheck version: 2.1.8 (121)
    Report generated April 16, 2015 at 10:19:42 AM EDT
    Download EtreCheck from http://etresoft.com/etrecheck
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        MacBook Pro (15-inch, Mid 2012) (Technical Specifications)
        MacBook Pro - model: MacBookPro9,1
        1 2.3 GHz Intel Core i7 CPU: 4-core
        4 GB RAM Upgradeable
            BANK 0/DIMM0
                2 GB DDR3 1600 MHz ok
            BANK 1/DIMM0
                2 GB DDR3 1600 MHz ok
        Bluetooth: Good - Handoff/Airdrop2 supported
        Wireless:  en1: 802.11 a/b/g/n
        Battery Health: Normal - Cycle count 412
    Video Information: ℹ️
        Intel HD Graphics 4000
        NVIDIA GeForce GT 650M - VRAM: 512 MB
            Color LCD 1440 x 900
    System Software: ℹ️
        OS X 10.10.2 (14C1514) - Time since boot: 7 days 18:4:45
    Disk Information: ℹ️
        APPLE HDD HTS547550A9E384 disk0 : (500.11 GB)
            EFI (disk0s1) <not mounted> : 210 MB
            Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB
            Macintosh HD (disk1) / : 498.88 GB (299.54 GB free)
                Core Storage: disk0s2 499.25 GB Online
        MATSHITADVD-R   UJ-8A8
    USB Information: ℹ️
        Western Digital My Passport 0748 500.07 GB
            EFI (disk3s1) <not mounted> : 210 MB
            My Passport (disk3s2) /Volumes/My Passport : 499.73 GB (126.16 GB free)
        Apple Inc. FaceTime HD Camera (Built-in)
        Apple Inc. BRCM20702 Hub
            Apple Inc. Bluetooth USB Host Controller
        Apple Inc. Apple Internal Keyboard / Trackpad
        Apple Computer, Inc. IR Receiver
    Thunderbolt Information: ℹ️
        Apple Inc. thunderbolt_bus
    Gatekeeper: ℹ️
        Mac App Store and identified developers
    Kernel Extensions: ℹ️
            /System/Library/Extensions
        [not loaded]    com.quark.driver.Tether (1.1.0d4 - SDK 10.4) [Click for support]
        [loaded]    com.quark.driver.Tether64 (1.1.0d3 - SDK 10.6) [Click for support]
        [not loaded]    com.wdc.driver.1394HP (1.0.11 - SDK 10.4) [Click for support]
        [not loaded]    com.wdc.driver.1394_64HP (1.0.1 - SDK 10.6) [Click for support]
        [not loaded]    com.wdc.driver.USBHP (1.0.11) [Click for support]
        [loaded]    com.wdc.driver.USB_64HP (1.0.0 - SDK 10.6) [Click for support]
    Problem System Launch Agents: ℹ️
        [killed]    com.apple.CallHistoryPluginHelper.plist
        [killed]    com.apple.CallHistorySyncHelper.plist
        [killed]    com.apple.gamed.plist
        [killed]    com.apple.Maps.pushdaemon.plist
        [killed]    com.apple.printtool.agent.plist
        [killed]    com.apple.telephonyutilities.callservicesd.plist
        6 processes killed due to memory pressure
    Problem System Launch Daemons: ℹ️
        [killed]    com.apple.awdd.plist
        [killed]    com.apple.ctkd.plist
        [killed]    com.apple.emond.aslmanager.plist
        [killed]    com.apple.nehelper.plist
        [killed]    com.apple.wdhelper.plist
        [killed]    com.apple.xpc.smd.plist
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    Launch Agents: ℹ️
        [not loaded]    com.adobe.AAM.Updater-1.0.plist [Click for support]
        [loaded]    com.coupons.coupond.plist [Click for support]
        [running]    com.mcafee.menulet.plist [Click for support]
        [running]    com.mcafee.reporter.plist [Click for support]
        [running]    com.oracle.java.Java-Updater.plist [Click for support]
        [loaded]    org.macosforge.xquartz.startx.plist [Click for support]
    Launch Daemons: ℹ️
        [failed]    com.adobe.fpsaud.plist [Click for support]
        [loaded]    com.adobe.SwitchBoard.plist [Click for support]
        [loaded]    com.macpaw.CleanMyMac2.Agent.plist [Click for support]
        [unknown]    com.mcafee.ssm.ScanFactory.plist [Click for support]
        [unknown]    com.mcafee.ssm.ScanManager.plist [Click for support]
        [running]    com.mcafee.virusscan.fmpd.plist [Click for support]
        [loaded]    com.microsoft.office.licensing.helper.plist [Click for support]
        [loaded]    com.oracle.java.Helper-Tool.plist [Click for support]
        [loaded]    com.oracle.java.JavaUpdateHelper.plist [Click for support]
        [loaded]    org.macosforge.xquartz.privileged_startx.plist [Click for support]
    User Launch Agents: ℹ️
        [loaded]    com.adobe.AAM.Updater-1.0.plist [Click for support]
        [loaded]    com.facebook.videochat.[redacted].plist [Click for support]
        [failed]    com.facebook.videochat.[redacted].plist [Click for support]
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        [loaded]    com.macpaw.CleanMyMac2Helper.diskSpaceWatcher.plist [Click for support]
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        [loaded]    com.macpaw.CleanMyMac2Helper.trashWatcher.plist [Click for support]
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        iTunesHelper    Application  (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
        WDSecurityHelper    UNKNOWN  (missing value)
        WDSecurityHelper    Application  (/Applications/WD Security.app/Contents/WDSecurityHelper.app)
        WDDriveUtilityHelper    UNKNOWN  (missing value)
        WDDriveUtilityHelper    Application  (/Applications/WD Drive Utilities.app/Contents/WDDriveUtilityHelper.app)
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        FlashPlayer-10.6: Version: 17.0.0.169 - SDK 10.6 [Click for support]
        QuickTime Plugin: Version: 7.7.3
        Flash Player: Version: 17.0.0.169 - SDK 10.6 [Click for support]
        CouponPrinter-FireFox_v2: Version: 5.0.3 - SDK 10.6 [Click for support]
        Default Browser: Version: 600 - SDK 10.10
        SharePointBrowserPlugin: Version: 14.4.8 - SDK 10.6 [Click for support]
        Silverlight: Version: 5.1.30514.0 - SDK 10.6 [Click for support]
        JavaAppletPlugin: Version: Java 8 Update 31 Check version
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        Google Earth Web Plug-in: Version: 7.1 [Click for support]
        Stamps.com: Version: 1.1.13 [Click for support]
        DISH Anywhere Player: Version: 2.7.2.0 [Click for support]
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    3rd Party Preference Panes: ℹ️
        Flash Player  [Click for support]
        Java  [Click for support]
    Time Machine: ℹ️
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        Mobile backups: ON
        Auto backup: YES
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            My Passport [Local]
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            Total number of backups: 29
            Oldest backup: 2013-05-17 22:06:43 +0000
            Last backup: 2015-03-27 16:16:56 +0000
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                Backup size 499.73 GB < (Disk used 199.33 GB X 3)
    Top Processes by CPU: ℹ️
             6%    backupd
             5%    WindowServer
             1%    Google Chrome
             1%    loginwindow
             1%    mtmd
    Top Processes by Memory: ℹ️
        289 MB    Google Chrome Helper
        189 MB    Google Chrome
        84 MB    backupd
        78 MB    Mail
        77 MB    Finder
    Virtual Memory Information: ℹ️
        17 MB    Free RAM
        1.22 GB    Active RAM
        1.22 GB    Inactive RAM
        996 MB    Wired RAM
        54.55 GB    Page-ins
        1.93 GB    Page-outs
    Diagnostics Information: ℹ️
        Apr 14, 2015, 03:11:54 PM    /Library/Logs/DiagnosticReports/softwareupdated_2015-04-14-151154_[redacted].cp u_resource.diag [Click for details]

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