Slim Browser 4.10 Build 15 is a tabbed multiple-site web browser that uses the Microsoft Trident rendering engine. It incorporates a large collection of features like built-in popup killer, skinned window frame, form filler, site group, quick-search, auto login, hidden sites, built-in commands and scripting, online translation, script error suppression, blacklist / whitelist filtering, URL Alias.

Tab handling:
SlimBrowser supports tabs in multiline or single line mode with horizontal scrolling.
You can drag the tabs to change their position arbitrarily.
You can rename tabs so it creates a fixed name for that particular site.
Middle click gesture or double click gesture to close (double click doesn't work on multiline tab mode, but does on multiline button style).
The primary differences between tab and button mode is that the tab you are using is always going to be on the top line, it acts like other normal tabbed controls. Button mode however means they stay in position, which can make managing a lot of sites at once easier.
Tabs can be saved in groups, which can then be opened at any time from the groups menu. Alternatively you can choose to open only sites from that group, or indeed have SlimBrowser open a group on startup.
If the browser crashes, it will remember the tabs you had open, and offer you the option of loading them all back up.
You can restore your previous session's tabs from the file menu (you can also have it do this behaviour by default).
Refreshing of pages can be done en masse - it also has a function to refresh a page automatically - you can choose the time delay.