How to clear browsing history, cache, cookies in Google Chrome, Mozilla Firefox, Internet Explorer, Safari & Opera ?

Launch Google Chrome, & Simply press (Ctrl + H) control key & "H" key OR (Ctrl+Shift+Delete) at a time in keyboard or go to settings > History > clear browsing data > Choose begining of time > check all the check boxes & click on clear browsing data.

Open Firefox & simply press (Ctrl+Shift+Delete) to access the Clear Recent History window & clear it or follow the steps below

1. Click Menu  Firefox Menu Icon in the upper right-hand corner of the screen.

2. Select History from the dropdown menu, then Clear Recent History...

3. Next to Time range to clear: click the down arrow and select Everything.

4. Click on the arrow next to Details to display the list of items that you can clear.

5. Make sure the Form & Search History box is checked.

6. Click the Clear Now button.

Open Internet Explorer & simply press (Ctrl+Shift+Delete) or  F10 > tools > delete browsing history . check all the check boxe & click delete. or follow the steps below

1. Click Tools Internet explorer tools icon in the upper right-hand corner.

2. Select Internet Options from the drop down menu.

3. Under the Content tab in the Autocomplete section, click the Settings button.

4. Right tick on all the checkboxes.

5. Click the Delete Autocomplete history button.

6. Check the boxes for areas whose history you'd like to clear then click Delete.

Step 1:  Launch Safari, Click safari option in the upper left corner of the main menu bar, and select the preferences option. Afterwards,click on the advanced located in the top navigation bar and check the box directly to the left of show develop menu to add the menu to Safari by default.

Step 2: Now you have to clear the browser cache on develop menu near the middle of the main Safari menu bar and select empty cache option.

Step 1: Launch Opera, click the Opera in the upper-left corner of the browser window and select the setting option from the drop down menu. Afterward, click on privacy and security panel located on the left-hand side of the resulting window and click on the clear browsing data in the Privacy section near the top of the page. 

Step 2: Clear the browser cache check the box directly to the left of the Empty the cache option near the bottom of the resulting pop-up window, along with any other browser data you wish to clear. Then, select the beginning of time option from the drop-down menu. Afterwards, click the gray Clear browsing data button in the bottom-right corner of the window.