Clearing Cache memory

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Introduction

Cache is a feature of browsers wherein a browser may store locally data and images from Web pages you have visited in order to speed up their loading time.
The next time you go to the same page, instead of re-fetching all the data from the network, the browser sends a preview to the server (site), and checks whether the version of the page it has kept is still current. If there were changes to the page since the last time it was fetched, the browser will refetch the page. If there are no changes, the browser will load the saved page from the local disk, saving the download time.

In NetFree

In NetFree, this feature may sometimes cause problems, this mainly concerns pictures.
Since the determination of whether an image is supposed to be open or blocked occurs in NetFree servers, at the stage of returning the information to the client, while checking whether the web page has changed is done against the server of the site, the browser may receive a response from the original server that there is no change to the page, and reload the saved page, and therefore the same pixelated picture will appear again and again, although in practice it has already been reviewed and approved or disqualified.
Sometimes even if you refresh the page repeatedly, the browser does not reload the page, so the image continues to appear pixelated.

In addition, there may be a case in which a new user of NetFree will see an inappropriate image, when the image is stored in the cache in his browser, and in fact is blocked in NetFree.

The solution to this is to delete the browser's cache one time, forcing the browser to reload the page in all its details.

The actual deletion process in four familiar browsers: Chrome, Firefox, Edge, and Explorer:

Delete in Chrome browser:

There are two options:

1. Cleaning a specific site by pressing F12 and then right-clicking (on the mouse) the browser refresh icon and selecting 'Clear cache and hard reset.

2. Open the browser, and press the key combination: Ctrl + Shift + Delete.
In the window that opens, define the following information:

In "Obliterate the following items from" defined: "the beginning of time".
Remove all the checks, except the "Cahed images and files" setting, which you leave checked.

Click "Clear browsing data".

Delete in Firefox browser:

Open the browser, and press the key combination: Ctrl + Shift + Delete.
In the window that opens, define the following information:

In "Time range to clear ," define "Everything." (An alert will appear, ignore it).
In the "Details" panel, remove all the checks, except "Cache".

Click "Clear now".

Delete in Edge Browser:

Open the browser, and press the key combination: Ctrl + Shift + Delete.
Under "Clear Browsing Data" remove all the checks, except for the following two settings:

Cached data and files.
Cookies and saved website data. (Note: Deleting cookies will take you out of the accounts of all sites you are logged in to).

Click "Clear".

Delete in Explorer browser:

Open the browser, and press the key combination: Ctrl + Shift + Delete.
Under "Delete Browsing History" remove all the checks, except for the following two settings:

Temporary Internet Files.
Cookies. (Note: Deleting cookies will take you out of the accounts of all sites you are logged in to).

Click "Delete".

External links:

Clean Cash in a wide variety of browsers and platforms - https://kb.wisc.edu/helpdesk/page.php?id=47897