Ubuntu file browser does not show hidden files and folders by default,only the files and  the folders the user has access to.But there is a key combination can show the hidden files and folders,and a way to make it show hidden files and folders by default.

Open up file browser and you will see something like following screen

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just hit Ctrl+H at this window,all the hidden files and folders will be shown to you,press the key combination again to hidden them.

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To make this be the default setting when open up file folder,go to Edit–>Preferences

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tick Show hidden and backup files,then hidden files will be shown by default.

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