Common NetSurf user options --------------------------- This document outlines the common configuration options supported by the NetSurf core. Overview ======== The users configurations are generally stored in a "Choices" file and are loaded at browser startup. Most user interfaces provide a way to configure these parameters in a manner consistant with the toolkit in use. The user choices are stored as a simple key:value list. Each entry has a type, one of: boolean, integer, unsigned integer, hexadecimal colour value or string. General Options =============== Option Key | Type | Default | Description -------------------- | ------ | --------- | -------------------------------- http_proxy | bool | false | An HTTP proxy should be used. http_proxy | bool | false | An HTTP proxy should be used. http_proxy_host | string | NULL | Hostname of proxy. http_proxy_port | int | 8080 | Proxy port. http_proxy_auth | int | 0 | Proxy authentication method. http_proxy_auth_user | string | NULL | Proxy authentication user name http_proxy_auth_pass | string | NULL | Proxy authentication password http_proxy_noproxy | string | localhost | Proxy omission list font_size | int | 128 | Default font size / 0.1pt. font_min_size | int | 85 | Minimum font size. font_sans | string | NULL | Default sans serif font font_serif | string | NULL | Default serif font font_mono | string | NULL | Default monospace font font_cursive | string | NULL | Default cursive font font_fantasy | string | NULL | Default fantasy font accept_language | string | NULL | Accept-Language header. accept_charset | string | NULL | Accept-Charset header. memory_cache_size | int | 12MiB | Preferred maximum size of memory cache in bytes. disc_cache_size | uint | 1GiB | Preferred expiry size of disc cache in bytes. disc_cache_age | int | 28 | Preferred expiry age of disc cache in days. block_advertisements | bool | false | Whether to block advertisements do_not_track | bool | false | Disable website tracking [1] minimum_gif_delay | int | 10 | Minimum GIF animation delay send_referer | bool | true | Whether to send the referer HTTP header. foreground_images | bool | true | Whether to fetch foreground images background_images | bool | true | Whether to fetch background images animate_images | bool | true | Whether to animate images enable_javascript | bool | false | Whether to execute javascript script_timeout | int | 10 | Maximum time to wait for a script to run in seconds expire_url | int | 28 | How many days to retain URL data for. font_default | int | 0 | Default font family ca_bundle | string | NULL | ca-bundle location ca_path | string | NULL | ca-path location cookie_file | string | NULL | Cookie file location cookie_jar | string | NULL | Cookie jar location homepage_url | string | NULL | Home page location search_url_bar | bool | false | search web from url bar search_provider | int | 0 | default web search provider url_suggestion | bool | true | URL completion in url bar window_x | int | 0 | default x position of new windows window_y | int | 0 | default y position of new windows window_width | int | 0 | default width of new windows window_height | int | 0 | default height of new windows window_screen_width | int | 0 | width of screen when above options were saved window_screen_height | int | 0 | height of screen when above options were saved toolbar_status_size | int | 6667 | default size of status bar vs. h scroll bar scale | int | 100 | default window scale incremental_reflow | bool | true | Whether to reflow web pages while objects are fetching min_reflow_period | uint | 25 | Minimum time (in cs) between HTML reflows while objects are fetching core_select_menu | bool | false | Use core selection menu [1] http://www.w3.org/Submission/2011/SUBM-web-tracking-protection-20110224/#dnt-uas Fetcher options =============== Option Key | Type | Default | Description ------------------------ | -----| ------- | ----------------------------------- max_fetchers | int | 24 | Maximum simultaneous active fetchers max_fetchers_per_host | int | 5 | Maximum simultaneous active fetchers per host. (<=option_max_fetchers else it makes no sense) [2] max_cached_fetch_handles | int | 6 | Maximum number of inactive fetchers cached. The total number of handles netsurf will therefore have open is this plus option_max_fetchers. suppress_curl_debug | bool | true | Suppress debug output from cURL. target_blank | bool | true | Whether to allow target="_blank" button_2_tab | bool | true | Whether second mouse button opens in new tab. [2] Note that rfc2616 section 8.1.4 says that there should be no more than two keepalive connections per host. None of the main browsers follow this as it slows page fetches down considerably. See https://bugzilla.mozilla.org/show_bug.cgi?id=423377#c4 PDF / Print options =================== Option Key | Type | Deflt | Description ---------------------- | ---- | ----- | ------------------------------------ margin_top | int | 10 | top margin of exported page margin_bottom | int | 10 | bottom margin of exported page margin_left | int | 10 | left margin of exported page margin_right | int | 10 | right margin of exported page export_scale | int | 70 | scale of exported content suppress_images | bool | false | suppressing images in printed content remove_backgrounds | bool | false | turning off all backgrounds for printed content enable_loosening | bool | true | turning on content loosening for printed content enable_PDF_compression | bool | true | compression of PDF documents enable_PDF_password | bool | false | setting a password and encoding PDF documents System colours ============== These are the css system colours which the browser also uses to style generated output. Option Key | Type | Default ------------------------------ | ------ | ---------- sys_colour_ActiveBorder | colour | 0x00d3d3d3 sys_colour_ActiveCaption | colour | 0x00f1f1f1 sys_colour_AppWorkspace | colour | 0x00f1f1f1 sys_colour_Background | colour | 0x006e6e6e sys_colour_ButtonFace | colour | 0x00f9f9f9 sys_colour_ButtonHighlight | colour | 0x00ffffff sys_colour_ButtonShadow | colour | 0x00aeaeae sys_colour_ButtonText | colour | 0x004c4c4c sys_colour_CaptionText | colour | 0x004c4c4c sys_colour_GrayText | colour | 0x00505050 sys_colour_Highlight | colour | 0x00c00800 sys_colour_HighlightText | colour | 0x00ffffff sys_colour_InactiveBorder | colour | 0x00f1f1f1 sys_colour_InactiveCaption | colour | 0x00e6e6e6 sys_colour_InactiveCaptionText | colour | 0x00a6a6a6 sys_colour_InfoBackground | colour | 0x008fdfef sys_colour_InfoText | colour | 0x00000000 sys_colour_Menu | colour | 0x00f1f1f1 sys_colour_MenuText | colour | 0x004e4e4e sys_colour_Scrollbar | colour | 0x00cccccc sys_colour_ThreeDDarkShadow | colour | 0x00aeaeae sys_colour_ThreeDFace | colour | 0x00f9f9f9 sys_colour_ThreeDHighlight | colour | 0x00ffffff sys_colour_ThreeDLightShadow | colour | 0x00ffffff sys_colour_ThreeDShadow | colour | 0x00d5d5d5 sys_colour_Window | colour | 0x00f1f1f1 sys_colour_WindowFrame | colour | 0x004e4e4e sys_colour_WindowText | colour | 0x00000000