Opera opens this page when you click help buttons in dialog boxes.
When Opera starts, the following options are offered in the start-up dialog:
Disable the start-up dialog if you always start Opera the same way.
Click to buy Opera.
Tip: If Opera repeatedly exits for no apparent reason, try starting with no pages.
When you have a set of Web pages open, for example your Web e-mail and your favorite news sites, you can save them as an Opera "session". If you then close all open pages, and load the session, all pages will reopen.
Tip: If you open the same Web pages every morning, save them and tell Opera to always start with this session.
Go to Opera's menu to find the "Sessions" dialog.
You can fine-tune printing of Web pages:
Go to Opera's menu to find the "Print options" dialog.
Use this feature to preview a printed version of any Web page.
If a page is built up of frames, you can choose whether to:
Go to Opera's menu, or press P, to use the "Print preview" function.
You can drag any button and drop it on any toolbar, but you may have to right-click a toolbar and uncheck the "Lock toolbars" option first.
Example: To conserve screen space, drag the buttons you use most often from the Main bar to the Address bar, and then turn the Main bar off.
Tip: After dropping a button on a toolbar, right-click the toolbar for more options.
Go to Opera's menu to find the "Customize toolbars" dialog.
You can set Opera to reload a page automatically, for example every 5 minutes. This can be used to monitor news sites and stock rates, or other Web pages that are updated frequently.
Some pages have an expiration time. You can choose to reload a page only if it has expired.
Go to Opera's menu to find the "Reload every" dialog.
This dialog lets you specify a Web page to open when you click the "Home" button on the Main bar.
Tip: You can set Opera to always start with your home page.
Go to Opera's menu to find the "Set home page" dialog.
This dialog lets you enter Web addresses when the address field is not available, for example in full-screen mode.
You can also choose between previously entered Web addresses from the drop-down menu.
Go to Opera's menu, or press F2, to find the "Go to page" dialog.
Opera will ask you how you want to handle a downloaded file:
You can choose not to be asked again for similar files, but use this option carefully.
Note: It is a good idea to always scan a downloaded file with updated virus-protection software before you open or start it.
Click for further options.
Tip: For more information about how Opera handles downloaded files, read about file types.
Some Web pages require that you enter a user name and a password before you can access information. Contact the Web site in question if you cannot log in.
Tip: Use the Wand to remember log-in information.
Server certificates are used to verify the identity of a Web site you are visiting. On secure sites, for example bank sites, Opera accepts certificates to establish a secure connection.
Normally, you will simply see the icon to the left of Opera's Progress bar change from an open to a locked padlock. This means that the certificate was correctly set up and verified (signed) by someone on your list of authorities (trusted third parties). In all other cases, Opera will display a warning.
Accepting a certificate after a warning will establish a connection, but the connection may not be secure if the certificate is not valid. Make your choice of whether or not to accept certificates based on whether or not you trust the site in question. Never accept (or install) certificates on sites you do not trust.
Opera will warn you if one of the certificates presented by a server has expired. Accepting expired certificates is a potential security risk because this indicates that the site you are visiting is not being maintained properly.
Click to establish the connection only if you believe that the site you are visiting can still be trusted.
Click if you suspect that the site is no longer being actively maintained, or cannot be trusted anymore.
Opera will warn you if a server name in a certificate does not match the hostname. This means that you have encountered a certificate that may be valid, but only for use on a different site than the one you are currently visiting. This is a potential security risk because a certificate issued by an authority is approved for use by one organization or company only, and only on one site.
Click if you do not wish to establish a connection.
Click to establish the connection only if you believe that the site you are visiting and the site for which the certificate is actually issued belong to the same trustworthy organization.
Opera will warn you if a certificate signer (root certificate) is not found on your list of authorities. This is a potential security risk if you do not trust this unregistered certificate signer.
Click to establish a connection only if you trust the site you are visiting.
Click if you do not wish to establish a connection.
If available, click to include the certificate signer (root certificate) on your list of trusted authorities and then establish a connection. Do this only if you trust the certificate signer. Connections to other sites certified by the same signer, now an authority, will thus be allowed automatically in the future (unless you uncheck this option).
Technical note: Root certificates are not signed by another authority; they are self-signed. In other words, anybody can make them.
For more information about installed certificates, read about security.
A "cookie" is a small piece of information that a Web site stores on your computer so that it can remember something about you. Cookies are intended to make browsing easier, but can be used for exploitive purposes.
If you are familiar with cookies and trust the site that attempts to set a cookie, click the button. Click if you are in doubt.
A cookie is illegal if it is not set according to acknowledged Internet standards. Because this is a potential violation of your privacy, Opera will discard certain such cookies. Click to continue.
If a page tries to use cookies to, for example, trace your browsing within a national domain, the cookie will automatically be refused by Opera. A national domain is one that does not end in .com, .net, .org, .edu, .gov, .mil, or .int.
Security note: If a site in a national domain tries to set a cookie, Opera will perform a DNS lookup to find the IP address of the target domain. This is done to verify the validity of the cookie, and if no IP address exists, Opera will refuse the cookie. Should you encounter this, you might want to ask the site's Web master to create an IP address for the domain specified in the cookie.
For more information, read about privacy and cookies.
Some sites offer file uploading as part of their service. Normally, you click and select which file you want to upload from your computer.
Privacy note: A form can be preset to upload private files from your computer. To prevent forms from stealing your files, Opera will always warn you if a filename is preset in an upload form.
This dialog helps you to delete information about your browsing.
Warning: Be sure you know what you are doing before you use this dialog. Deleting private data may have unwanted side effects:
Note: Information deleted from hard drives may be restored using "undelete" software.
Go to Opera's menu to find the "Delete private data" dialog.
Before you can check your e-mail and read news messages, you must enter the password given to you by your service provider.
You can save the password so that you do not have to re-enter it, but this means that other people with access to your computer can check your e-mail. The password is encrypted before it is stored to disk.
Contact your service provider if you have persisting problems.
For more information, read about Opera's security password.
Messages you delete are temporarily stored in your Trash folder. If you regret deleting a message, open your Trash folder and click the Undelete button in the message view.
Note: If you go into your Trash folder and press Delete, selected messages are permanently deleted.
Tip: To permanently delete all messages in your Trash folder, right-click the Hotlist message tree and select "Empty trash".
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