lade dir etrecheck, das zeigt dir dann die installierten Erweiterungen an, eventuell findet man da einen der üblichen Verdächtigen:
http://www.etresoft.com/etrecheck
Das hier gibt etrecheck aus
EtreCheck version: 2.1.1 (104)
Report generated 7. Dezember 2014 21:40:57 MEZ
Hardware Information:
MacBook Pro (15-inch, Late 2011) (Verified)
MacBook Pro - model: MacBookPro8,2
1 2.2 GHz Intel Core i7 CPU: 4-core
4 GB RAM Upgradeable
BANK 0/DIMM0
2 GB DDR3 1333 MHz ok
BANK 1/DIMM0
2 GB DDR3 1333 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Video Information:
Intel HD Graphics 3000 - VRAM: 384 MB
Color LCD 1440 x 900
AMD Radeon HD 6750M - VRAM: 512 MB
System Software:
OS X 10.10.1 (14B25) - Uptime: 0:31:31
Disk Information:
TOSHIBA MK5065GSXF disk0 : (500,11 GB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
Macintosh HD (disk1) / : 498.91 GB (50.63 GB free)
Encrypted AES-XTS Unlocked
Core Storage: disk0s2 499.25 GB Online
MATSHITADVD-R UJ-8A8
USB Information:
Apple Computer, Inc. IR Receiver
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. BRCM2070 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Inc. Apple Internal Keyboard / Trackpad
Thunderbolt Information:
Apple Inc. thunderbolt_bus
Gatekeeper:
Anywhere
Kernel Extensions:
/Applications/Tunnelblick.app
[not loaded] net.tunnelblick.tap (1.0) [Support]
[not loaded] net.tunnelblick.tun (1.0) [Support]
/Library/Extensions
[loaded] at.obdev.nke.LittleSnitch (4228 - SDK 10.8) [Support]
Launch Agents:
[running] at.obdev.LittleSnitchUIAgent.plist [Support]
[loaded] com.adobe.CS4ServiceManager.plist [Support]
[loaded] com.divx.dms.agent.plist [Support]
[loaded] com.divx.update.agent.plist [Support]
[loaded] com.oracle.java.Java-Updater.plist [Support]
[running] com.orbicule.UCAgent.plist [Support]
[loaded] org.gpgtools.gpgmail.enable-bundles.plist [Support]
[loaded] org.gpgtools.gpgmail.patch-uuid-user.plist [Support]
[loaded] org.gpgtools.gpgmail.updater.plist [Support]
[running] org.gpgtools.Libmacgpg.xpc.plist [Support]
[loaded] org.gpgtools.macgpg2.fix.plist [Support]
[running] org.gpgtools.macgpg2.shutdown-gpg-agent.plist [Support]
[loaded] org.gpgtools.macgpg2.updater.plist [Support]
[loaded] org.macosforge.xquartz.startx.plist [Support]
Launch Daemons:
[running] at.obdev.littlesnitchd.plist [Support]
[loaded] com.adobe.fpsaud.plist [Support]
[loaded] com.oracle.java.Helper-Tool.plist [Support]
[loaded] com.oracle.java.JavaUpdateHelper.plist [Support]
[running] com.orbicule.uc.plist [Support]
[loaded] com.rogueamoeba.instanton-agent.plist [Support]
[loaded] com.tunnelbear.mac.tbeard.plist [Support]
[not loaded] org.eyebeam.SelfControl.plist [Support]
[loaded] org.gpgtools.gpgmail.patch-uuid.plist [Support]
[loaded] org.macosforge.xquartz.privileged_startx.plist [Support]
[not loaded] org.macports.rsyncd.plist [Support]
[invalid?] org.wireshark.ChmodBPF.plist [Support]
User Launch Agents:
[invalid?] com.citrixonline.GoToMeeting.G2MUpdate.plist [Support]
[loaded] com.google.keystone.agent.plist [Support]
[loaded] net.tunnelblick.tunnelblick.LaunchAtLogin.plist [Support]
[running] ws.agile.1PasswordAgent.plist [Support]
User Login Items:
LG Screen Split Programm (/Applications/Screen Split.app)
iTunesHelper Programm (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Dropbox Programm (/Applications/Dropbox.app)
owncloud Programm (/Applications/owncloud.app)
Internet Plug-ins:
FlashPlayer-10.6: Version: 15.0.0.239 - SDK 10.6 [Support]
OVSHelper: Version: 1.1 [Support]
DivX Web Player: Version: 3.2.3.1164 - SDK 10.6 [Support]
AdobePDFViewer: Version: 9.0.0 [Support]
Flash Player: Version: 15.0.0.239 - SDK 10.6 [Support]
Default Browser: Version: 600 - SDK 10.10
QuickTime Plugin: Version: 7.7.3
Silverlight: Version: 5.1.30514.0 - SDK 10.6 [Support]
JavaAppletPlugin: Version: Java 7 Update 71 Check version
User internet Plug-ins:
CitrixOnlineWebDeploymentPlugin: Version: 1.0.105 [Support]
Google Earth Web Plug-in: Version: 7.1 [Support]
Safari Extensions:
Alexa Site Stats
Wettervorschau
TagesschauVideo-1
YouTube Downloader
Shortly
Amazon Button
Awesome Screenshot
Linkify
Facebook Share
YouTube Auto Replay
comicSansBeGone-1
ConnectionBlock
Breaking News
SaveTabs
Safari imgTag-1
Simplr-1
1Password
Ultimate Status Bar
Site Navigation Bar
GAlpha
Coda Notes
SuggestionBlock
LongURL for Safari-1
Optimize Legibility-1
QuickTu
ExifExt
Text Statistics
Google status
FaceBlock
HTML5 Styler - YouTube
A Cleaner YouTube
TinEye-1
FBConnectionBlock
My eBay Manager
Amazon Search Menu Item
YouTube video downloader-1
Amazon Search Button
CrowdBar
SafariRestore
Release The Fail Whale
NoFollow
The New York Times
JavaScript Blacklist
TabLinks-1
YoutubeWide
Ghostery
Mail Open Tabs
Facebook Photo Zoom
SnapBack-1
Short URL-1
Facebook MiniLogin
Socialafari
FacebookBlocker
Mini Google Maps
VimeoEmbiggener
Goo.gl Shortener
HoverZoom
NoMoreiTunes
Invisible Status Bar
Flickr Original-1
Twitter for Safari
HoverZoom
QuickLook Photo Gallery
WOT
Social Fixer
Franker
Wikipedia Button
Mark All FB-Friends
aVOID
Snapper
Google Alarm
Post to Twitter
Deanimator
FlashToHTML5
Turn Off the Lights
Type-To-Navigate
Bit.ly Shortener
GoogleClickTracker
SearchButton
Text2Link-1
Naked YouTube
Look Up in SpanishDict
Open in Papers
Cloudy
TinEye (Unofficial)
ClickToFlash
Exposer
Stickies-1
3rd Party Preference Panes:
Flash Player [Support]
GPGPreferences [Support]
Java [Support]
SANE [Support]
Secrets [Support]
SwitchResX [Support]
Time Machine:
Mobile backups: OFF
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 498.91 GB Disk used: 448.29 GB
Destinations:
timemachine [Local]
Total size: 2.00 TB
Total number of backups: 13
Oldest backup: 2014-12-02 10:03:11 +0000
Last backup: 2014-12-07 18:51:24 +0000
Size of backup disk: Excellent
Backup size 2.00 TB > (Disk size 498.91 GB X 3)
Top Processes by CPU:
6% WindowServer
3% AddressBookSourceSync
2% Activity Monitor
2% Screen Split
1% Little Snitch Agent
Top Processes by Memory:
219 MB Safari
159 MB Finder
154 MB WindowServer
125 MB mds_stores
116 MB Mail
Virtual Memory Information:
50 MB Free RAM
1.58 GB Active RAM
1.50 GB Inactive RAM
1.12 GB Wired RAM
1.71 GB Page-ins
2 MB Page-outs
Diagnostics Information:
Dec 7, 2014, 09:10:05 PM Self test - passed
Dec 7, 2014, 05:28:08 PM gpg2_2014-12-07-172808_Pollux.crash
Dec 7, 2014, 05:18:18 PM garcon_2014-12-07-171818_Pollux.crash
Dec 6, 2014, 03:39:58 PM garcon_2014-12-06-153958_Pollux.crash
Dec 5, 2014, 05:29:01 PM com.apple.AmbientDisplayAgent_2014-12-05-172901_Pollux.crash