org.openqa.selenium.firefox.NotConnectedException: Unable to connect to host 127.0.0.1 on port 7055 after 45000 ms.

Question

Firefox console output:
URL":null,"updateKey":null,"optionsURL":null,"optionsType":null,"aboutURL":"chrome://ranorexautomation3/content/about.xul","icons":{},"iconURL":"chrome://ranorexautomation3/content/ranorexautomation.png","icon64URL":null,"defaultLocale":{"name":"Ranorex Automation","description":"Enables Ranorex Automation for Firefox web documents","creator":"Ranorex","homepageURL":null},"visible":true,"active":false,"userDisabled":true,"appDisabled":true,"descriptor":"C:\\Program Files (x86)\\Ranorex 6.0\\Ranorex Firefox Extension","installDate":1468508925415,"updateDate":1468508925415,"applyBackgroundUpdates":1,"bootstrap":false,"skinnable":false,"size":1634634,"sourceURI":null,"releaseNotesURI":null,"softDisabled":false,"foreignInstall":true,"hasBinaryComponents":true,"strictCompatibility":false,"locales":[],"targetApplications":[{"id":"{ec8030f7-c20a-464f-9b0e-13a3a9e97384}","minVersion":"2.0","maxVersion":"39.9"}],"targetPlatforms":[],"multiprocessCompatible":false,"signedState":0,"seen":true}
1475657423968 DeferredSave.extensions.json DEBUG Save changes
1475657423968 addons.xpi DEBUG Updating database with changes to installed add-ons
1475657423968 addons.xpi-utils DEBUG Updating add-on states
1475657423970 addons.xpi-utils DEBUG Writing add-ons list
1475657423978 addons.xpi DEBUG Registering manifest for C:\Program Files (x86)\Mozilla Firefox\browser\features\[email protected]
1475657423979 addons.xpi DEBUG Calling bootstrap method startup on [email protected] version 1.0
1475657423979 addons.xpi DEBUG Registering manifest for C:\Program Files (x86)\Mozilla Firefox\browser\features\[email protected]
1475657423980 addons.xpi DEBUG Calling bootstrap method startup on [email protected] version 1.0.2
1475657423981 addons.xpi DEBUG Registering manifest for C:\Program Files (x86)\Mozilla Firefox\browser\features\[email protected]
1475657423983 addons.xpi DEBUG Calling bootstrap method startup on [email protected] version 1.3.2
1475657424016 addons.manager DEBUG Registering shutdown blocker for XPIProvider
1475657424017 addons.manager DEBUG Provider finished startup: XPIProvider
1475657424017 addons.manager DEBUG Starting provider: LightweightThemeManager
1475657424017 addons.manager DEBUG Registering shutdown blocker for LightweightThemeManager
1475657424017 addons.manager DEBUG Provider finished startup: LightweightThemeManager
1475657424018 addons.manager DEBUG Starting provider: GMPProvider
1475657424025 addons.manager DEBUG Registering shutdown blocker for GMPProvider
1475657424026 addons.manager DEBUG Provider finished startup: GMPProvider
1475657424026 addons.manager DEBUG Starting provider: PluginProvider
1475657424026 addons.manager DEBUG Registering shutdown blocker for PluginProvider
1475657424026 addons.manager DEBUG Provider finished startup: PluginProvider
1475657424027 addons.manager DEBUG Completed startup sequence
1475657426311 addons.manager DEBUG Starting provider: <unnamed-provider>
1475657426311 addons.manager DEBUG Registering shutdown blocker for <unnamed-provider>
1475657426311 addons.manager DEBUG Provider finished startup: <unnamed-provider>
1475657426890 DeferredSave.extensions.json DEBUG Write succeeded
1475657426890 addons.xpi-utils DEBUG XPI Database saved, setting schema version preference to 17
1475657426891 DeferredSave.extensions.json DEBUG Starting timer
1475657426913 DeferredSave.extensions.json DEBUG Starting write
1475657426923 addons.repository DEBUG No addons.json found.

Answer 1

This is the usual problem we face with Firefox.

Try to downgrade or upgrade your selenium library to get this support.

Another suspect can be newly installed plugin or antivirus.Try to disable any newly installed plugin or antivirus.

Let me know your feedback.