The daughter of Robin Williams quit social media, upset by internet trolls and the online pilfering of photos of her Oscar-winning dad following his death by suicide.
"I will be leaving this account for a bit while I heal and decide if I'll be deleting it or not," Zelda Williams, 25, wrote on Instagram beneath a photo of a butterfly.
"In this difficult time, please try to be respectful of the accounts of myself, my family and my friends," she urged.
Monday's death of Williams -- one of the finest comedy talents of his generation -- at the age of 63 prompted an global outpouring of public grief on social media.
But his grieving daughter expressed frustration at the way family photos she had posted online had been used, and how internet trolls had attacked her.
"Mining our accounts for photos of dad, or judging me on the number of them is cruel and unnecessary," added the actress, who appeared with her father in the 2004 drama "House of D."
On Twitter, Zelda Williams invited fans to make donations to St. Jude Children's Research Hospital, a renowned paediatric medical center in Memphis, Tennessee that her father supported.
Williams -- whose films included Good Will Hunting, Good Morning Vietnam and Mrs. Doubtfire -- was found dead in his San Francisco-area home on Monday by his personal assistant.
The father of three, who sometimes made light of his troubles with substance abuse and his stints in rehab, had been seeking treatment for severe depression.
In New York, the Broadway League said theaters along the Great White Way would darken their marquees Wednesday evening for one minute in Williams' honor.
"Whether on screen or live on stage, his multi-faceted talent always created memorable performances," said executive director Charlotte St. Martin in a statement.
Show business trade journal Variety meanwhile reported a surge in online sales of Williams' rich body of work, with 12 of the 13 top-selling DVDs on Amazon.com featuring the comic genius.
Topping the list was "Mrs. Doubtfire," followed by "Good Will Hunting," "Dead Poets Society," "Good Morning, Vietnam," "Patch Adams," "The Birdcage" and "What Dreams May Come."
Apple's iTunes downloading service also saw an uptick in sales, although not as strong as on Amazon, the world's biggest internet retailer.
Where to get help:
• Lifeline: 0800 543 354 (available 24/7)
• Suicide Crisis Helpline: 0508 828 865 (0508 TAUTOKO) (available 24/7)
• Youth services: (06) 3555 906
• Youthline: 0800 376 633
• Kidsline: 0800 543 754 (4pm to 6pm weekdays)
• Whatsup: 0800 942 8787 (1pm to 11pm)
• The Word
• Depression helpline: 0800 111 757 (available 24/7)
• Rainbow Youth: (09) 376 4155
• CASPER Suicide Prevention
If it is an emergency and you feel like you or someone else is at risk, call 111.