This userscript adds some features and fixes some issues to improve your game experience.
Feature list (excerpt)
Adds completely new chat with pm tabs, clickable links, clickable usernames (to send a pm) and intelligent scrolling
Adds smelting and tree growing timer and changes other timers to look like the ones in DHQoL for DH1
Adds calculated times until an event (like collecting sand) happened at least once with different probabilities (1%, 10%, 20%, 50%, 80%, 90%, 99%) - these information are available on hover in shovel popup and fishing rod popup (for all types of fish - can be seen here: http://imgur.com/a/ElG0g)
Adds information (instead of the text "1") for some bound items: capacity for furnace, oil cap for oil storage, tier level for tools, oil production for oil items and current state for boat/canoe
Adds requirement tooltips for recipes
Hides furnace, oil storage and oven recipes if they aren't better than the current level
Hides recipes of maxed machines or owned items which are not stackable
Detects spamming in chat and hides spam messages (may be obsolete since the server has some spam detection)
Fixes updating the brewing and cooking recipes
Changelog
Version 0.56.21
add showing the remaining time of maple trees
improve boat caption to show there is only one boat at a time allowed
fix setting tooltip of lime leaf seed with DH2QoL enabled
change slightly delayed setting of autoscroll when using intelligent scrolling
huge performance boost for chat (especially with more than 900 messages - scrolling inconsistencies are fixed)
fix some issues when used with DH2QoL (tree timers, oil consumption/production)
fix always showing combat start timer
lots of improvements/fixes for chat:
remove vulnerability for zalgo text
fully restore copyability of the chat messages ("Server Message"s are select-/copyable again)
add chunk system for chat to improve responsiveness of the whole page with a long chat (activates at more than 900 messages):
Groups chat messages in chunks (technically divs) to hide non-visible chunks and un-hide them on scrolling through the chat. This introduces important performance reduction (e.g. for reduced power consumption).
Though it is so far only tested in Google Chrome. Please inform me about occurring problems via reddit: /u/TheZorbing.
Version 0.51.1
add fix for updating cooking recipes
improve chat further:
make counter for new chat messages more prominent
move tag to username to be more space efficient
reduce space used in pm tabs
fix chat to produce complete and copyable text (includes time and user level)
Version 0.50.3
add new chat style with pm tabs
Version 0.49.0
add intelligent scrolling in chat
add fix for always showing combat countdown
remove some obsolete temporary fixes
remove obsolete notification boxes
Version 0.41.0
add tooltips for recipes
add timer notification box for combat cooldown
add fix for updating brewing recipes
add capacity caption for oil storage 4
update tier captions for tools
add tweaking style of oil production/consumption
Version 0.32.0
add notification boxes for wood cutting and harvest
hide tool recipes directly after crafting
fix elements when receiving xp at login (approach no 2)
change name of empty tree spot (for real this time)
fix being unable to smelt 8 or 9 bars
Version 0.29.1
add chance to time calculator (see feature list)
fix injection possibility via chat links
fix always starting smelting timer correctly
change name of empty tree spot
Version 0.28.1
add timer for trees
improve amount input in smelting dialog
add fix for grow time of green leaf seeds
add fix for exhaustion timer to tick always when visible
add fix for xp-texts at game join
Version 0.22.2
fix grow time of lime leaf seeds
fix open links from chat in new tab
add fix for shown burn rate of oven
fix item value updates
remove fix for magic tab
Version 0.20.2
fix recipe of oil storage 3
improve furnace timer to tick every second
fix images in magic tab
fix overflowing oil image in mining tab
Version 0.18.0
improve timer format
add smelting timer
add showing item tier and oil production
add using a checkbox for autoscroll control
Version 0.12.1
improve spam detection
add clickable links in chat
add information for some bound items
Version 0.9.0
add spam detection for chat
add hiding recipes of oil pipe and row boat when bound
Version 0.6.0
add hiding recipes of maxed machines
Version 0.4.0
add fix for wobbling elements in wood cutting tab when hovering over one chopping area
hide furnace and oil storage recipes if they aren't better than the current level